https://bugs.winehq.org/show_bug.cgi?id=43599
--- Comment #7 from Adam Szmigin smidge@xsco.net --- (In reply to Fabian Maurer from comment #5)
For some reason it works with `WINEDLLOVERRIDES="d3dcompiler_46.dll=d;d3dcompiler_47.dll=d" wine EnginePrime.exe`
I can also confirm that this workaround allows the application to start up successfully (and the splash screen renders too, as Louis points out).
I'll do some more in-depth testing and update the app DB too.
Kind regards, Adam