When two sims are cooking one will stop the other sim from cooking

Hi Shnoognfire18​ 

to be sure, you didn't use join cooking but each cooked their own meal ? Do you have more than one oven ? There can be conflicts if two Sims want to use the same object at the same time.

I used two separate cooking actions and I had two ovens and two fridges. One was cooking cupcakes the other bread.

Here are some pictures I got of it happening after I replicated it. in order of the steps and I Clicked cook separately

I'm going to put this on review for Maxis to decide if it's a bug or not I personally don't think it is. The game has many instances where if you tell it to do something on an object it can decide to use a different one and if two Sims use the same objects, the interactions cancels.