https://bugs.winehq.org/show_bug.cgi?id=53046
--- Comment #8 from tkocou@protonmail.com --- I purged the WINE 5.0.3 and installed WINE 7.0 stable from Synaptic Manager. Then I followed your suggestion of creating a new WINEPREFIX and then copying over the contents of the new WINEPREFIX to the default .wine directory - basically overwriting the default.
When I tried the winecfg, all works now. Where exactly are the WINEPREFIX stored in Linux? I'd like to clear out all the messed up prefixes.