I made a new prison for the new update that came out. After around 50 days into my prison I noticed that my prisoners won't eat while it is eat time. I checked solitary and lockdown list and there is only 3 in both. Any suggestions on how to fix it?

Yeah, my other prisons before the update never had this problem

Ah! The trays were the problem. I just figured out that there was 361 dirtied trays being washed. Thanks for mentioning the trays, I would have never figured it out!