Kontact freezes on wayland

[Ihor Antonov]

Hi KDE folks. 

Sorry if this is sent to the wrong ML.

I am using latest stable KDE Neon with recent Plasma 5.20.1. Everything works 
great on X11.

On wayland sesstion Kontact application freezes shortly after start (but still 
can be closed if click the cross in the window title). This is 100% 
reproducible problem.

Does anybody know if this can be fixed somehow? 

Thanks