My sims cheer at SimFests but there’s no one on Stage
This issue occurs if your town doesn’t have enough Singers, Magicians and acrobats.
The game creates them but the StoryProgression mod and Overwatch removes them from the game since they are homeless.
The game still does the SimFests, there’s just no one to perform.
Make sure that there’s inactives in Showtime careers but this bug doesn’t do anything bad other than looking weird.