Sometimes in the GW8 Windows Client, the TAB Key and also copy&paste shortkeys, SHIFT-INS and STRG-INS are not working.

Using C&P with contextmenu and mouse is working.
Shutting down and restarting the client solves the problem (temporarily)

GW 8.0.1 Build: 88138 Language: German

I also found threads, that the DEL Key is not working sometimes, in my case that's not a problem here.

any ideas or a bug?
Thanks, Tobi