https://bugs.winehq.org/show_bug.cgi?id=44563
--- Comment #1 from David dav75uk@yahoo.co.uk --- The additional log message above is relate I believe:
Windows Error 14007 : ERROR_SXS_KEY_NOT_FOUND: The requested lookup key was not found in any active activation context.
https://en.wikipedia.org/wiki/Side-by-side_assembly
which mentions activation contexts and manifests. The question then is why now can't the manifest be parsed? (new functionality which doesn't quite work, or a breaking change?)