https://bugs.kde.org/show_bug.cgi?id=423862
--- Comment #2 from RJVB <rjvber...@gmail.com> --- The backtrace is with Qt 5.12 which is still in LTS support AFAIK, and there are plenty of ways to crash Qt by doing stupid things that lead to dereferencing a null "this" pointer as happens here. So I wouldn't shrug off responsibility to upstream so easily. FWIW, the crash does NOT happen when I use one of Qt's own Wayland compositor examples. Testing this (with more current KWin and Qt versions) takes less than a minute when you have an X11 session running. If that doesn't reproduce the issue than this report can be closed more properly. Is there a kwin appimage I could test with myself? -- You are receiving this mail because: You are watching all bug changes.