Application: plasmashell (5.23.4)

Qt Version: 5.15.3
Frameworks Version: 5.88.0
Operating System: Linux 5.11.0-41-generic x86_64
Windowing System: X11
Distribution: KDE neon User - Plasma 25th Anniversary Edition
DrKonqi: 5.23.4 [KCrashBackend]

-- Information about the crash:
- What I was doing when the application crashed:
Recently, whenever I attempt to change the settings of the calendar widget, Plasma shell crashes. This happens whenever I click on the settings icon. The calendar widget itself seems to work well (except that it forgot which PIM calendars I want to see, which is why I would like to change the settings).

The crash can be reproduced every time.

-- Backtrace (Reduced):
#4  0x00007f8bdb290d22 in QV4::QQmlTypeWrapper::virtualInstanceOf(QV4::Object const*, QV4::Value const&) (typeObject=0x7ffe85ad1ab0, var=...) at qml/qqmltypewrapper.cpp:423
#5  0x00007f8bdb158248 in QV4::Object::instanceOf(QV4::Value const&) const (var=..., this=0x7ffe85ad1ab0) at ../../include/QtQml/5.15.3/QtQml/private/../../../../../src/qml/memory/qv4heap_p.h:73
#6  QV4::Runtime::Instanceof::call(QV4::ExecutionEngine*, QV4::Value const&, QV4::Value const&) (engine=0x55ed5efe3d80, lval=..., rval=...) at jsruntime/qv4runtime.cpp:387
#7  0x00007f8bdb1459e0 in QV4::Moth::VME::interpret(QV4::CppStackFrame*, QV4::ExecutionEngine*, char const*) (frame=0x7ffe85ad1b90, engine=0x55ed5efe3d80, code=0x7f8ba2f38a1b "L\020/\276") at jsruntime/qv4vme_moth.cpp:351
#8  0x00007f8bdb14911f in QV4::Moth::VME::exec(QV4::CppStackFrame*, QV4::ExecutionEngine*) (frame=frame@entry=0x7ffe85ad1b90, engine=engine@entry=0x55ed5efe3d80) at jsruntime/qv4vme_moth.cpp:463


Possible duplicates by query: bug 445493.

Reported using DrKonqi