Since updating to the latest version (I just instantly started using Monkey as well, so idk if a vanilla run would not cause this to happen), I can get to somewhere around week 3 (I think it's week 3, Thursday) before saves just stop working. Literally can save on Thursday but the game simply refuses to save on Friday of the same week. I didn't even notice until, after a few times of closing and coming back to the game, I realized it was always Thursday.
Monkey is the only reason this doesn't piss me off, since I can basically cut corners and make the girls and interactions I like in the first week. Also, I have considered the fact that I could just not close the game, as my system could handle that just running in the background, but oof.
It's a weird issue. I do remember in other versions that the game progressively took longer and longer to save. Maybe it's related?
BTW, yes, I completely removed all files and data before downloading and installing the latest version. But since I'm a bit confused and also interested, I am going to try and remove everything again and see what happens.