I disabled the mods I have and that made no difference. Even when reverting to a save before the event was triggered.
Emit Relevart is also glitched, asking him to change the future (to get the events) put the game in an endless loop and cancels the interaction only during the nightly "cleanup".
I wonder if it is normal to have multiple Emits in the relationship tracker. I have 8 at the moment! I never reseted the time continuum, although my Sims future was changed twice and her descendants remained in the low family funds shack with the same furniture, despite being rich after my Sim won the lottery a few times.
I found that when this particular part of the "Fires in the Skies" ("Convince 6 Sims") breaks, the stands at the "Fests" stop working too. No Sims are there at all, despite the opening hours.
I also noticed that while my main sim is in town with her car, the bot uses that same car while going out on his own.
That's not really a problem, but still surprising.
I really hope the bugs will be fixed soon!
Edit: After the fifth attempt there were protesters outside the town hall (after the Doomsday meeting). They could be convinced that the sky is falling.