https://bugs.winehq.org/show_bug.cgi?id=57662
--- Comment #14 from Oberon Engineering winehq.tabloid372@passmail.net --- (In reply to Oberon Engineering from comment #13)
Created attachment 77917 [details] WINEDEBUG=+gdiplus ..
From the gdi+ trace I noticed `trace:gdiplus:initialize_decoder_wic` and looked into where that dispatches into. Turns out there is a blob of code called `windowscodecs.dll` and since images put into Bitmaps were not rendering I thought perhaps that was the cause.
After doing, `$ winetricks windowscodecs oleaut32` where the 'oleaut32' seems to be req as a co-dep of 'windowscodecs', I was finally able to solve one of the two render bugs.
While Wayland still opens multiple windows and X11 does not (obviously a bug in the backend driver) I can at least get the application to render its main window with icons now.