ASSERT: "newInstance != d->animationInstance" in file qquickbehavior.cpp

virtual QAbstractAnimationJob* QQuickAnimator::transition(QQuickStateActions&, QQmlProperties&, QQuickAbstractAnimation::TransitionDirection, QObject*) property name conflict...
ASSERT: "newInstance != d->animationInstance" in file /home/mitch/dev/qt-dev/qtdeclarative/src/quick/util/qquickbehavior.cpp, line 409

1  __pthread_kill_implementation                                                                                                                                                                                                                            pthread_kill.c                     44   0x7fffeec96a7c 
2  __pthread_kill_internal                                                                                                                                                                                                                                  pthread_kill.c                     78   0x7fffeec96a7c 
3  __GI___pthread_kill                                                                                                                                                                                                                                      pthread_kill.c                     89   0x7fffeec96a7c 
4  __GI_raise                                                                                                                                                                                                                                               raise.c                            26   0x7fffeec42476 
5  __GI_abort                                                                                                                                                                                                                                               abort.c                            79   0x7fffeec287f3 
6  qAbort                                                                                                                                                                                                                                                   qglobal.cpp                        161  0x7fffef5cc455 
7  qt_message_fatal                                                                                                                                                                                                                                         qlogging.cpp                       2045 0x7fffef5f1c66 
8  QMessageLogger::fatal                                                                                                                                                                                                                                    qlogging.cpp                       934  0x7fffef5e8772 
9  qt_assert                                                                                                                                                                                                                                                qassert.cpp                        68   0x7fffef5c7090 
10 QQuickBehavior::write                                                                                                                                                                                                                                    qquickbehavior.cpp                 409  0x7ffff624479e 
11 QQmlInterceptorMetaObject::doIntercept                                                                                                                                                                                                                   qqmlvmemetaobject.cpp              345  0x7ffff47ffe27 
12 QQmlInterceptorMetaObject::intercept                                                                                                                                                                                                                     qqmlvmemetaobject_p.h              104  0x7ffff480b992 
13 QQmlVMEMetaObject::metaCall                                                                                                                                                                                                                              qqmlvmemetaobject.cpp              665  0x7ffff4803a8b 
14 QQmlPropertyData::doMetacall<(QMetaObject::Call)2>                                                                                                                                                                                                       qqmlpropertydata_p.h               320  0x7ffff425e7ed 
15 QQmlPropertyData::writeProperty                                                                                                                                                                                                                          qqmlpropertydata_p.h               340  0x7ffff425c1b8 
16 tryConvertAndAssign                                                                                                                                                                                                                                      qqmlproperty.cpp                   1412 0x7ffff45d1cec 
17 QQmlPropertyPrivate::write                                                                                                                                                                                                                               qqmlproperty.cpp                   1524 0x7ffff45d31af 
18 QQmlPropertyPrivate::writeValueProperty                                                                                                                                                                                                                  qqmlproperty.cpp                   1306 0x7ffff45d1150 
19 QQmlBinding::slowWrite                                                                                                                                                                                                                                   qqmlbinding.cpp                    537  0x7ffff428c4c5 
20 GenericBinding<10>::write                                                                                                                                                                                                                                qqmlbinding.cpp                    265  0x7ffff42bfd03 
21 QQmlBinding::doUpdate                                                                                                                                                                                                                                    qqmlbinding.cpp                    697  0x7ffff428f1e9 
22 QQmlBinding::update                                                                                                                                                                                                                                      qqmlbinding.cpp                    161  0x7ffff4288fc8 
23 QQmlBinding::expressionChanged                                                                                                                                                                                                                           qqmlbinding.cpp                    600  0x7ffff428d812 
24 QQmlJavaScriptExpressionGuard_callback                                                                                                                                                                                                                   qqmljavascriptexpression.cpp       548  0x7ffff448f37b 
25 QQmlNotifier::emitNotify                                                                                                                                                                                                                                 qqmlnotifier.cpp                   70   0x7ffff4540076 
26 QQmlData::signalEmitted                                                                                                                                                                                                                                  qqmlengine.cpp                     357  0x7ffff43663aa 
27 doActivate<false>                                                                                                                                                                                                                                        qobject.cpp                        3883 0x7fffef8fd3bb 
28 QMetaObject::activate                                                                                                                                                                                                                                    qobject.cpp                        4064 0x7fffef8e84ed 
29 QQmlVMEMetaObject::activate                                                                                                                                                                                                                              qqmlvmemetaobject.cpp              1382 0x7ffff480a7f8 
30 QQmlVMEMetaObject::metaCall                                                                                                                                                                                                                              qqmlvmemetaobject.cpp              942  0x7ffff4806a39 
31 QMetaObject::metacall                                                                                                                                                                                                                                    qmetaobject.cpp                    332  0x7fffef7d7d6a 
32 QV4::QObjectWrapper::setProperty                                                                                                                                                                                                                         qv4qobjectwrapper.cpp              605  0x7ffff400e48a 
33 QV4::QObjectWrapper::setQmlProperty                                                                                                                                                                                                                      qv4qobjectwrapper.cpp              464  0x7ffff400a680 
34 QV4::QQmlContextWrapper::virtualPut                                                                                                                                                                                                                      qv4qmlcontext.cpp                  459  0x7ffff3ff8dd3 
35 QV4::Object::put                                                                                                                                                                                                                                         qv4object_p.h                      281  0x7ffff3db3f47 
36 QV4::ExecutionContext::setProperty                                                                                                                                                                                                                       qv4context.cpp                     278  0x7ffff3dc51ee 
37 QV4::Runtime::StoreNameSloppy::call                                                                                                                                                                                                                      qv4runtime.cpp                     964  0x7ffff40bcf37 
38 QV4::Moth::VME::interpret                                                                                                                                                                                                                                qv4vme_moth.cpp                    677  0x7ffff41727c4 
39 QV4::Moth::VME::exec                                                                                                                                                                                                                                     qv4vme_moth.cpp                    541  0x7ffff416c47a 
40 QV4::doCall                                                                                                                                                                                                                                              qv4function.cpp                    54   0x7ffff3f11b79 
41 QV4::Function::call                                                                                                                                                                                                                                      qv4function.cpp                    79   0x7ffff3f11ec3 
42 operator()                                                                                                                                                                                                                                               qv4function.cpp                    30   0x7ffff3f11578 
43 QV4::convertAndCall<QV4::Function::call(QObject *, void * *, const QMetaType *, int, QV4::ExecutionContext *)::<lambda(const QV4::Value *, const QV4::Value *, int)>>(QV4::ExecutionEngine *, QObject *, void * *, const QMetaType *, int, struct {...}) qv4jscall_p.h                      197  0x7ffff3f152bb 
44 QV4::Function::call                                                                                                                                                                                                                                      qv4function.cpp                    27   0x7ffff3f116dd 
45 QQmlJavaScriptExpression::evaluate                                                                                                                                                                                                                       qqmljavascriptexpression.cpp       270  0x7ffff448bf51 
46 QQmlBoundSignalExpression::evaluate                                                                                                                                                                                                                      qqmlboundsignal.cpp                195  0x7ffff42c43a9 
47 QQmlBoundSignal_callback                                                                                                                                                                                                                                 qqmlboundsignal.cpp                310  0x7ffff42c4f5b 
48 QQmlNotifier::emitNotify                                                                                                                                                                                                                                 qqmlnotifier.cpp                   70   0x7ffff4540076 
49 QQmlData::signalEmitted                                                                                                                                                                                                                                  qqmlengine.cpp                     357  0x7ffff43663aa 
50 doActivate<false>                                                                                                                                                                                                                                        qobject.cpp                        3883 0x7fffef8fd3bb 
51 QMetaObject::activate                                                                                                                                                                                                                                    qobject.cpp                        4051 0x7fffef8e8477 
52 QQuickSinglePointHandler::pointChanged                                                                                                                                                                                                                   moc_qquicksinglepointhandler_p.cpp 191  0x7ffff5ae29e5 
53 QQuickSinglePointHandler::handlePointerEventImpl                                                                                                                                                                                                         qquicksinglepointhandler.cpp       103  0x7ffff5ae17dc 
54 QQuickPointerHandler::handlePointerEvent                                                                                                                                                                                                                 qquickpointerhandler.cpp           654  0x7ffff5ac9e98 
55 QQuickItemPrivate::handlePointerEvent                                                                                                                                                                                                                    qquickitem.cpp                     5590 0x7ffff5bc6100 
56 QQuickDeliveryAgentPrivate::deliverMatchingPointsToItem                                                                                                                                                                                                  qquickdeliveryagent.cpp            2105 0x7ffff6268e20 
57 QQuickDeliveryAgentPrivate::deliverPressOrReleaseEvent                                                                                                                                                                                                   qquickdeliveryagent.cpp            2080 0x7ffff62688a3 
58 QQuickDeliveryAgentPrivate::deliverPointerEvent                                                                                                                                                                                                          qquickdeliveryagent.cpp            1846 0x7ffff626537b 
59 QQuickDeliveryAgentPrivate::handleMouseEvent                                                                                                                                                                                                             qquickdeliveryagent.cpp            1620 0x7ffff6260e85 
60 QQuickDeliveryAgent::event                                                                                                                                                                                                                               qquickdeliveryagent.cpp            705  0x7ffff6255beb 
61 QQuickWindow::event                                                                                                                                                                                                                                      qquickwindow.cpp                   1479 0x7ffff5ecd1f6 
62 QCoreApplicationPrivate::notify_helper                                                                                                                                                                                                                   qcoreapplication.cpp               1247 0x7fffef79e97c 
63 doNotify                                                                                                                                                                                                                                                 qcoreapplication.cpp               1176 0x7fffef79e0bf 
64 QCoreApplication::notify                                                                                                                                                                                                                                 qcoreapplication.cpp               1159 0x7fffef79df5e 
65 QGuiApplication::notify                                                                                                                                                                                                                                  qguiapplication.cpp                1954 0x7ffff0d8c40d 
66 QCoreApplication::notifyInternal2                                                                                                                                                                                                                        qcoreapplication.cpp               1080 0x7fffef79dd3e 
67 QCoreApplication::sendSpontaneousEvent                                                                                                                                                                                                                   qcoreapplication.cpp               1512 0x7fffef79f69b 
68 QGuiApplicationPrivate::processMouseEvent                                                                                                                                                                                                                qguiapplication.cpp                2280 0x7ffff0d8ebb8 
69 QGuiApplicationPrivate::processWindowSystemEvent                                                                                                                                                                                                         qguiapplication.cpp                2026 0x7ffff0d8d06c 
70 QWindowSystemInterface::sendWindowSystemEvents                                                                                                                                                                                                           qwindowsysteminterface.cpp         1100 0x7ffff0f367e6 
71 xcbSourceDispatch                                                                                                                                                                                                                                        qxcbeventdispatcher.cpp            57   0x7fffeab4c63d 
72 g_main_context_dispatch                                                                                                                                                                                                                                                                          0x7ffff371bd3b 
73 ??                                                                                                                                                                                                                                                                                               0x7ffff37706c8 
74 g_main_context_iteration                                                                                                                                                                                                                                                                         0x7ffff37193e3 
75 QEventDispatcherGlib::processEvents                                                                                                                                                                                                                      qeventdispatcher_glib.cpp          393  0x7ffff01b6312 
76 QXcbGlibEventDispatcher::processEvents                                                                                                                                                                                                                   qxcbeventdispatcher.cpp            96   0x7fffeab4cbe5 
77 QEventLoop::processEvents                                                                                                                                                                                                                                qeventloop.cpp                     100  0x7fffef7cc733 
78 QEventLoop::exec                                                                                                                                                                                                                                         qeventloop.cpp                     182  0x7fffef7cd131 
79 QCoreApplication::exec                                                                                                                                                                                                                                   qcoreapplication.cpp               1401 0x7fffef79f144 
80 QGuiApplication::exec                                                                                                                                                                                                                                    qguiapplication.cpp                1886 0x7ffff0d8c208 
81 main                                                                                                                                                                                                                                                     main.cpp                           20   0x555555556c70