https://bugs.winehq.org/show_bug.cgi?id=53489
--- Comment #1 from François Gouget fgouget@codeweavers.com --- Note that this bug is probably related to bug 51363, except that the latter seemed to be about a systematic failure, and only on a specific couple of configurations.
Anyway, there was a suspicion that this was caused by a rogue window not processing some broadcast message.