Can't drag food into the fridge anymore

Normally I'd drag my sims' meals into the fridge for them after the whole family gets a serving but today when I loaded into my legacy save I was unable to drag things into the fridge at all. I can still drag into the trash and sink but the refrigerator is off limits. I also couldn't drag things out of the refrigerator when I opened it, which is frustrating because I keep my harvestables in there and usually give a couple to my toddler in case they get dangerously hungry. Also possible related, I'm having insanely bad lag whenever I click on anything to interact, try to change sims, or even pause the game.