Created attachment 176184 [details]
konsole backtrace

SUMMARY
Maybe the connector of my non-MST display got loose, thus kwin switched to the previously turned off display (first in a MST chain), upon discovering the display again, it switched the configuration back and I find crash notifications for kwrite and konsole.

In the journal I see:
Nov 28 12:30:26 <> kwalletd6[1836]: qt.qpa.wayland: Creating a fake screen in order for Qt not to crash
and lots of firefox warnings:
Couldn't map window 0x7a02a7ff27a0 as subsurface because its parent is not mapped.
then
Nov 28 12:31:48 <> kwin_wayland_wrapper[1976]: XWAYLAND: mode -1x-1 is not available
Nov 28 12:31:48 <> kwin_wayland_wrapper[1976]: XWAYLAND: mode -1x-1 is not available
Nov 28 12:31:48 <> kwin_wayland_wrapper[1976]: XWAYLAND: mode -1x-1 is not available
Nov 28 12:31:48 <> kwin_wayland_wrapper[1976]: XWAYLAND: mode -1x-1 is not available



STEPS TO REPRODUCE
1. have screens appear/disappear
2. crash if lucky

OBSERVED RESULT
konsole and kwrite crash

EXPECTED RESULT
they don't

SOFTWARE/OS VERSIONS
Operating System: Arch Linux 
KDE Plasma Version: 6.2.3
KDE Frameworks Version: 6.8.0
Qt Version: 6.8.0
Kernel Version: 6.12.1-arch1-1 (64-bit)
Graphics Platform: Wayland
Processors: 16 × AMD Ryzen 7 PRO 4750U with Radeon Graphics
Memory: 46.3 GiB of RAM
Graphics Processor: AMD Radeon Graphics


ADDITIONAL INFORMATION