In the situation tuning for the dance party drama nodes, they've added cemetery to the list of compatible venues, but I believe that's a mistake because the text in the phone invite clearly says that it should either be at the bluffs, the ruins, the chalet or a nightclub.
It's in the following tuning. Even the names of the tuning suggests it should be at those venues only and not randomly also at cemeteries:
ID 127428 goDancing_ComplexSituation_Club_PartyGoer_ChaletOnly ID 127427 goDancing_ComplexSituation_Club_PartyGoer_BluffsOnly ID 127426 goDancing_ComplexSituation_Club_PartyGoer_RuinsOnly ID 127425 goDancing_ComplexSituation_Club_PartyGoer_NightclubOnly
The default Ravenwood cemetery isn't set up for a dance party - there's no hidden dance floor, bar and DJ booth that spawn in and out off the grid like in the proper Get Together locations.
I was able to get this back to normal by deleting cemetery from the list of compatible venues in the tuning files, so at least this means it should be relatively easy for them to fix.
