https://bugs.winehq.org/show_bug.cgi?id=38823
winehq@atypical.net changed:
What |Removed |Added ---------------------------------------------------------------------------- CC| |winehq@atypical.net
--- Comment #5 from winehq@atypical.net --- A workaround for this problem now exists:
winetricks gdiplus
followed by
winecfg
create a profile for the application, then select Grahics > (uncheck) Allow the window manager to control the windows
Tabs work 100%.