@danielr02OK, so on my regular save, I accidentally clicked “repair all” with nraas, then reset the cinema lot, then had my Sim do the “research competitor film” job when the game naturally generated it. Seems like one of those things worked (think it worked before the job) because now there isn’t a million sims at the cinema and a lot more at home. Will test and see if bartenders, bouncers, parties etc. still work once I get the chance.
EDIT: Switched to an NPC household I know was affected by the bug and their queues are normal now!
EDIT2: Yep, all fixed now! Thanks for the mod!