Comment # 5 on bug 967682 from Wolfgang Bauer

(In reply to Marc collin from comment #3)
> I have this issue with the last update of tumbleweed.
> Kde crash when i pass mouse over taskbar
> 
> 
> journalctl -b -r | grep kwin_wayland
> 
> ct 24 10:05:04 linux-77w7 kernel: kwin_wayland[5832]: segfault at 10 ip
> 000056385d1f4d1f sp 00007ffd2d9a4db0 error 4 in
> kwin_wayland[56385d1d7000+24000]

This bug report is from 2016, your crash is very likely a totally different
problem (I don't think kwin_wayland even existed back then).

Please open a new bug report and provide a backtrace of the crash.
It might be a problem on a lower level though, maybe related to bug#1178095.