Toddlers Cannot Be Aged Up

So I'm having trouble aging up my toddlers. The adults keep picking them up and instantly setting them back down again. This is the first game I've played since the July 2019 patch (adding items and CAS stories) and this happens to all my toddlers. So far this is the only problem I have had with them, besides the mother one time not reading a bed time story. Relaunching the game fixed that issue. I have:
-removed mods and cc
-repaired game
-reset sims 4 folder
-changed the surface the birthday cake was on
-had different adults attempt to help blow out candles
-had the toddlers ask to help blow out candles
-bought new counters and tables (without MOO)
-deleted chairs from around the table
-placed a counter in the middle of the room with nothing around it and put the cake on that
-changed lots entirely
-changed who made the cake
-changed the type of cake
-debugged everyone involved multiple times, including the cake (whose candles were on but tried it anyway)
-turned aging off
-turned aging back on

EDIT: Have attempted to use both resetSim and the testing cheats debug option. Also, I have every pack except for the free guitar (in case that matters)