I don't know if this is the right place to ask on this forum, if not, please feel free to move it! But I know several people here play the transmogrification game - making gemstones and metals into better gemstones - something we got initially in World Adventures.
I patched to 1.42 last week. I have all the EPs except Seasons. Apart from major lag, I didn't see much trouble, couple of crashes, normal after a patch. I reinstalled AwesomeMod and twallan's Error trap and now every time I send a Sim to the transmogrification bench to process gems (haven't tried with minerals yet) she will reset, or jump to some other part of the house, or simply drop the "Activate" action from her queue.
ETA:
It must have been a clash of mods, or an old AM or something. It works beautifully and consistently now.