After reconnecting a few times it is possible for a modbus client to assert due to an unexpected state

1  QMessageLogger::fatal                                                                                                                                                                                                             qlogging.cpp                   788  0x18af282  
2  qt_assert_x                                                                                                                                                                                                                       qglobal.cpp                    3052 0x18aaa7b  
3  QModbusRtuSerialMasterPrivate::processQueue                                                                                                                                                                                       qmodbusrtuserialmaster_p.h     362  0x1ffb353e 
4  QModbusRtuSerialMasterPrivate::setupSerialPort()::{lambda()#3}::operator()() const::{lambda()#1}::operator()() const                                                                                                              qmodbusrtuserialmaster_p.h     160  0x1ffc3e37 
5  QtPrivate::FunctorCall<QtPrivate::IndexesList<>, QtPrivate::List<>, void, QModbusRtuSerialMasterPrivate::setupSerialPort()::{lambda()#3}::operator()() const::{lambda()#1}>::call({lambda()#3}&, void * *)                        qobjectdefs_impl.h             130  0x1ffc3e37 
6  QtPrivate::Functor<QModbusRtuSerialMasterPrivate::setupSerialPort()::{lambda()#3}::operator()() const::{lambda()#1}, 0>::call<QtPrivate::List<>, void>({lambda()#3}&, void *, QtPrivate::List<> *)                                qobjectdefs_impl.h             242  0x1ffc3e37 
7  QtPrivate::QFunctorSlotObject<QModbusRtuSerialMasterPrivate::setupSerialPort()::{lambda()#3}::operator()() const::{lambda()#1}, 0, QtPrivate::List<>, void>::impl(int, QtPrivate::QSlotObjectBase *, QObject *, void * *, bool *) qobject_impl.h                 168  0x1ffc3e37 
8  QtPrivate::QSlotObjectBase::call                                                                                                                                                                                                  qobject_impl.h                 101  0x1a4b1d3  
9  QSingleShotTimer::timerEvent                                                                                                                                                                                                      qtimer.cpp                     318  0x1a4b1d3  
10 QObject::event                                                                                                                                                                                                                    qobject.cpp                    1227 0x1a430ec  
11 QApplicationPrivate::notify_helper                                                                                                                                                                                                qapplication.cpp               3717 0x159685a6 
12 QApplication::notify                                                                                                                                                                                                              qapplication.cpp               3089 0x1596fb9c 
13 QCoreApplication::notifyInternal2                                                                                                                                                                                                 qcoreapplication.cpp           1018 0x1a1c189  
14 QCoreApplication::sendEvent                                                                                                                                                                                                       qcoreapplication.h             233  0x1a6a86b  
15 QEventDispatcherWin32Private::sendTimerEvent                                                                                                                                                                                      qeventdispatcher_win.cpp       444  0x1a6a86b  
16 QEventDispatcherWin32::event                                                                                                                                                                                                      qeventdispatcher_win.cpp       1054 0x1a6b066  
17 QApplicationPrivate::notify_helper                                                                                                                                                                                                qapplication.cpp               3717 0x159685a6 
18 QApplication::notify                                                                                                                                                                                                              qapplication.cpp               3089 0x1596fb9c 
19 QCoreApplication::notifyInternal2                                                                                                                                                                                                 qcoreapplication.cpp           1018 0x1a1c189  
20 QCoreApplication::sendEvent                                                                                                                                                                                                       qcoreapplication.h             233  0x1a20a12  
21 QCoreApplicationPrivate::sendPostedEvents                                                                                                                                                                                         qcoreapplication.cpp           1678 0x1a20a12  
22 QEventDispatcherWin32::sendPostedEvents                                                                                                                                                                                           qeventdispatcher_win.cpp       1062 0x1a67cd7  
23 QWindowsGuiEventDispatcher::sendPostedEvents                                                                                                                                                                                      qwindowsguieventdispatcher.cpp 81   0x62aa7150 
24 qt_internal_proc(HWND__ *, unsigned int, unsigned int, long) *16                                                                                                                                                                  qeventdispatcher_win.cpp       234  0x1a6ae72  
25 gapfnScSendMessage                                                                                                                                                                                                                                                    0x768562fa 
26 ??                                                                                                                                                                                                                                                                    0xb0864    
27 ??                                                                                                                                                                                                                                                                    0x401      
28 ??