[Bug 50686] New: MUSICUS!: ending videos no longer play [regression]

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=50686

Bug ID: 50686
           Summary: MUSICUS!: ending videos no longer play [regression]
           Product: Wine
           Version: 6.2
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: winegstreamer
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

Created attachment 69420
  --> https://bugs.winehq.org/attachment.cgi?id=69420
terminal output from 6.2 [broken] and 6.0 [working]

MUSICUS!'s ending videos used to play just fine, they're just MPEG1.

However, with wine-devel 6.2 the game hangs at a black screen instead. (There's
no sound, either, and the game does not resume regular operation after the
video should have finished playing.) FWIW, wine-staging 6.2 has exactly the
same symptoms. wine-stable 6.0 works as expected. See attached terminal output.

[Ubuntu 18.04.5, official packages from the winehq repo.]