Ideas
I have tried several ways to get my sim to eat but they wont. They just constantly reset and you can literally see them resetting when trying to get them to eat.
I've tried a new stove, new fridge, for them to use the grill instead. So getting the food cooked isn't the issue. But every time they sit down with the food, they reset and the food ends up on the floor. Or try to get them to grab a serving and it ends up on the floor. This is very recent and started happening with my Witch sim after having her practice magic and things started messing up eating wise since.
Example here:
https://gyazo.com/8360cdaadb306eafc6081b7253ec34e9
https://gyazo.com/345a6cfff0ad35453c971b74e1e293d7
I havent been able to get the sim to eat all day yesterday and today. I just have had to make needs Happy.
I'm having the same issue, I haven't had it repeat since clearing out my sims' leftovers and making new ones (all of the new ones are gormet cooking, i'm not sure if that makes a difference or not). If it happens again I will go through the steps listed by cririct (I do have mods and CC) and share my Last Exception file info in this thread!