Created attachment 108853 [details] backtrace I right clicked on panel and tried to add wiget, then screen briefly flashed, and the error reporter appeared and produced the attached kcrash.txt
I can reproduce with these following steps: 1. Right click panel 2. select "Panel Settings" 3. press the "+ Add Widgets" button at this point the background wallpaper flickers (although all my other applications that are up don't seem to be affected).
Created attachment 108855 [details] New crash information added by DrKonqi plasmashell (5.11.3) using Qt 5.9.2 I've just reproduced the crash, and this time am using the crash reporting assistant. (Note again I'm on fresh install of Parabola Linux, the FOSS-only version of Arch) -- Backtrace (Reduced): #5 0x00007fd62018cc81 in wl_proxy_create_wrapper () at /usr/lib/libwayland-client.so.0 #6 0x00007fd60258185a in () at /usr/lib/libEGL_mesa.so.0 #7 0x00007fd60256e6df in () at /usr/lib/libEGL_mesa.so.0 #8 0x00007fd602bba722 in () at /usr/lib/qt/plugins/wayland-graphics-integration-client/libwayland-egl.so #9 0x00007fd602bb8bce in () at /usr/lib/qt/plugins/wayland-graphics-integration-client/libwayland-egl.so
Same issue for me on latest Arch, so it's not just Parabola that's affected.
*** This bug has been marked as a duplicate of bug 381630 ***