Qt Design Studio crashes after changing kit

QDS crashes after changing kit.

Steps to reproduce:

Open a QDS project.

Change kit from Run Settings. (wrench symbol)

Disable previous kit. Enable new kit. Select it.

Go back to Edit. -> here is when it crashes.

Expected behaviour: it does not crash.

Please ask or give instructions if further debug info is needed. Here is the output I see in the terminal:

./qtdesignstudio
qtaccount.license: Reading Qt Account settings from disk: "/home/william/.local/share/Qt/qtaccount.ini"
qtaccount.license: Reading licenses from file: "/home/william/.local/share/Qt/qtlicenses.ini"
qtaccount.license: License added. License id [ 10874775 ] License schema [ "Full Commercial" ] Licensed products [ "Device Creation,Application Development,Automation,Safe Renderer,Design Studio,3D Studio,MCU,MCUSparkFontEngine,Qt for Device Creation Enterprise,Enterprise" ] Licensed platforms [ QList("X11", "Embedded Linux", "Windows", "Mac", "Embedded Windows", "Android", "QNX", "VxWorks", "INTEGRITY", "iOS", "WinRT", "Embedded Android") ] License expiry date [ QDate("2023-12-31") ]
qtaccount.license: License added. License id [ 10875403 ] License schema [ "Full Commercial" ] Licensed products [ "Design Studio,3D Studio,Qt Design Tools Enterprise" ] Licensed platforms [ QList("X11", "Embedded Linux", "Windows", "Mac", "Embedded Windows", "Android", "QNX", "VxWorks", "INTEGRITY", "iOS", "WinRT", "Embedded Android") ] License expiry date [ QDate("2023-12-31") ]
qtaccount.license: Valid licenses found: 2
Login completed to Qt Account: "william.smith@qt.io"
qtaccount.license: License added. License id [ 10874775 ] License schema [ "Full Commercial" ] Licensed products [ "Device Creation,Application Development,Automation,Safe Renderer,Design Studio,3D Studio,MCU,MCUSparkFontEngine,Qt for Device Creation Enterprise,Enterprise" ] Licensed platforms [ QList("X11", "Embedded Linux", "Windows", "Mac", "Embedded Windows", "Android", "QNX", "VxWorks", "INTEGRITY", "iOS", "WinRT", "Embedded Android") ] License expiry date [ QDate("2023-12-31") ]
qtaccount.license: License added. License id [ 10875403 ] License schema [ "Full Commercial" ] Licensed products [ "Design Studio,3D Studio,Qt Design Tools Enterprise" ] Licensed platforms [ QList("X11", "Embedded Linux", "Windows", "Mac", "Embedded Windows", "Android", "QNX", "VxWorks", "INTEGRITY", "iOS", "WinRT", "Embedded Android") ] License expiry date [ QDate("2023-12-31") ]
qtaccount.license: Saving licenses to file: "/home/william/.local/share/Qt/qtlicenses.ini"
qtaccount.license: Reading licenses from file: "/home/william/.local/share/Qt/qtlicenses.ini"
qtaccount.license: Valid licenses found: 2
QQmlEngine::setContextForObject(): Object already has a QQmlContext
QQmlEngine::setContextForObject(): Object already has a QQmlContext
"standaloneMode"
"qdsStartupCount"
SOFT ASSERT: "false && "__cplusplus is not predefined, assuming latest C++ we support."" in file /home/qt/work/build/qt-creator/src/plugins/projectexplorer/toolchain.cpp, line 450
QMetaObject::invokeMethod: No such method ItemsView_QMLTYPE_167::clearSearchFilter()
qtc.imagecontainer.debug: void QmlDesigner::readSharedMemory(qint32, QmlDesigner::ImageContainer&) Not able to create image: 0 0 0
qtc.imagecontainer.debug: void QmlDesigner::readSharedMemory(qint32, QmlDesigner::ImageContainer&) Not able to create image: 0 0 0
qtc.imagecontainer.debug: void QmlDesigner::readSharedMemory(qint32, QmlDesigner::ImageContainer&) Not able to create image: 0 0 0
qtc.imagecontainer.debug: void QmlDesigner::readSharedMemory(qint32, QmlDesigner::ImageContainer&) Not able to create image: 0 0 0
QFileSystemWatcher::removePaths: list is empty
QProcess: Destroyed while process ("/home/william/Qt/Tools/QtDesignStudio/qt5_design_studio_reduced_version/bin/qml2puppet") is still running.
QProcess: Destroyed while process ("/home/william/Qt/Tools/QtDesignStudio/qt5_design_studio_reduced_version/bin/qml2puppet") is still running.
QProcess: Destroyed while process ("/home/william/Qt/Tools/QtDesignStudio/qt5_design_studio_reduced_version/bin/qml2puppet") is still running.
Segmentation fault (core dumped)