For me, it still worked with XCode 12 Beta 6 iOS14 simulators and now it stopped with the GM simulators. Maybe this helps in identifying the problem.
twentysevenleaves
Users receive reputation points by contributing quality content to the forums.
Posts include post and replies published on the forums.
Post authors can mark replies as Accepted to indicate successful solutions.
Apple Developer Forums admins can mark replies as Apple Recommended to indicate an approved solution
From
Wien, Österreich