http://bugs.winehq.org/show_bug.cgi?id=58161
--- Comment #4 from Alexandre Julliard julliard@winehq.org --- (In reply to Austin English from comment #2)
I think in the past we've considered bugs like this INVALID for development releases. Alexandre, what do you think?
Sometimes when there are changes to low-level dlls, it's possible that the prefix needs to be re-created, or else forcefully updated with WINEBOOTSTRAPMODE=1. That can even happen between stable releases. I understand that it's annoying, but I'm afraid it can't be completely avoided.