Since I came across here on my search for answers and problem solving ... here's my input.
Are you using a laptop or a dekstop computer ?
Desktop
What are your basic specs (Processor, Graphics Card, RAM, Operating System, Free disc space) ?
Intel Core i7-4820K CPU @ 3.7GHz
AMD Radeon R9 270
8 GB RAM
Windows 8.1
200GB free disc space
Do you have any files called lastexception.txt (in the folder: documents\electronicarts\thesims4\) with a date that close to the first occurrence of the bug ? (if so, please upload the file to some file sharing site and include the link in your post).
Unfortunately not. I had some graphic card issues that were causing a ton of those files so the initial lastexception.txt from the first occurrence is gone. However, I just had the error turn up again and the lastexception.txt has the date and timestamp from that. uploaded to pastebin, anyway. http://pastebin.com/4urMuKhP
Do any of the above workaround work for you and if so, which one ?
Restarting game did not help, but repairing the game did. Since then I always use repair game when the error occurs again and don't really try any of the others.
Does the issue reoccur after a while ?
Unfortunately, yes. Also in another household (tried starting a fresh household and got the error again after a while). I had this happening a couple of times now.
Are you using custom content or mods in your game ?
I did use Custom Content in between but right now there are none in my game (took them out, deleted cage files) and the error still reoccurred.
At what point did you give the command when you first encountered the issue (ex.: Sims was sleeping and cooking was queued, Sim was doing nothing and just sent to cook) ?
The first time, the sim was doing nothing and I tried to get her to eat food from the fridge (pre-cooked meals stored in the fridge) and she would not. I then tried to have her cook something, money gone, but the cooking action vanished from the queue directly after being queued. Tried another sim to have him cook and the same thing happened.
Are all the Sims in your household affected or only certain ones ?
Everyone in the family was affected. No one was able to cook or just grab a serving from an already cooked meal.
What happen if you switch active households ? Do they have the bug as well ?
Did not try. I usually only play one household. Will try that next time around.
If you then switch back, do the existing Sims still have the issue ?
N/A
What career does the Sim have that first made the bug occur ?
None. The first sim I noticed it on was a teen. The parents in the household were in the Tech Guru and Astronaut careers.
Anything else you think important ?
The error happened after updating with the last patch. I never had the error happening before that.
Right before it happened, I aged up the girl in the family with a birthday cake. Automatic aging was on, but I aged her up way before she would have aged up 'naturally'.
When the error occurred I tried ResetSim, thinking the aging up might have broken her. Did not work. I tried cooking with both adults and it did not work (one of which had a high cooking skill, the other a very low one), restarting the game did not help. I also tried bying a new fridge (same type and then also a different type), thinking that it might be the fridge that is bugged. New fridge did not help and the same error kept happening. I only managed to resolve it after repairing the game.
I always play with autonomy on.
The poster before me said it did not happen to them in single sim households. Unfortunately, I can't confirm that. I recently started a new household (to see if it would still happen) and just now he returned from vacation and after tending to his garden I wanted him to eat some food from the fridge and it was bugged again. No taking a serving from already cooked food and no cooking possible.
Will keep track of the occurrences and collect more input. Hope this helps to identify the problem.