SUMMARY
I use systemd startup.
This crash occurs together Power Devil crash reported as bug 451939


STEPS TO REPRODUCE
1. login to Wayland session
2. logout
3. login to Wayland session again

OBSERVED RESULT
coredumpctl command reports xdg-desktop-portal-kde crash

EXPECTED RESULT
no crash

SOFTWARE/OS VERSIONS
Operating System: Arch Linux
KDE Plasma Version: 5.24.3
KDE Frameworks Version: 5.92.0
Qt Version: 5.15.3
Graphics Platform: Wayland


Thread 1 (Thread 0x7f26ee784a80 (LWP 50658)):
#0  0x00007f26f2df534c in __pthread_kill_implementation () from /usr/lib/libc.so.6
#1  0x00007f26f2da84b8 in raise () from /usr/lib/libc.so.6
#2  0x00007f26f2d92534 in abort () from /usr/lib/libc.so.6
#3  0x00007f26f3235ee4 in qt_message_fatal (message=<synthetic pointer>..., context=...) at global/qlogging.cpp:1914
#4  QMessageLogger::fatal (this=this@entry=0x7fff6ca88760, msg=msg@entry=0x7f26f4415029 "%s") at global/qlogging.cpp:893
#5  0x00007f26f3fafcc5 in init_platform (argv=<optimized out>, argc=@0x7fff6ca88750: -872131120, platformThemeName=..., platformPluginPath=..., pluginNamesWithArguments=...) at kernel/qguiapplication.cpp:1254
#6  QGuiApplicationPrivate::createPlatformIntegration (this=0x55a4cc0439c0) at kernel/qguiapplication.cpp:1481
#7  0x00007f26f3fb02e9 in QGuiApplicationPrivate::createEventDispatcher (this=<optimized out>) at kernel/qguiapplication.cpp:1498
#8  0x00007f26f342808b in QCoreApplicationPrivate::init (this=this@entry=0x55a4cc0439c0) at kernel/qcoreapplication.cpp:835
#9  0x00007f26f3fb03a7 in QGuiApplicationPrivate::init (this=this@entry=0x55a4cc0439c0) at kernel/qguiapplication.cpp:1527
#10 0x00007f26f4b933ae in QApplicationPrivate::init (this=0x55a4cc0439c0) at kernel/qapplication.cpp:513
#11 0x00007f26f4b934d4 in QApplication::QApplication (this=<optimized out>, argc=<optimized out>, argv=<optimized out>, _internal=<optimized out>, this=<optimized out>, argc=<optimized out>, argv=<optimized out>, _internal=<optimized out>) at kernel/qapplication.cpp:501
#12 0x000055a4cb64f0d1 in main (argc=<optimized out>, argv=0x7fff6ca88b78) at /usr/src/debug/xdg-desktop-portal-kde-5.24.3/src/xdg-desktop-portal-kde.cpp:25