I followed all these steps and removed all my mods. Everything was going smoothly mod free. I added the MC Command Center mod back to test it first. The book issue is solved. What's interesting is I had been having last exceptions reports every time my sims went fishing or placed a fish in a fish bowl before. I was focused on the book issue and forgot about this at this time of the post. After adding back MC Command center I added a fish in a bowl and got a last exception again. Sims 4 Version: 1.105.345.1020 what I'm on.
It says: Last Module Called: tooltip_component.py Last Function Called: get_state_strings Error message: [tingyul] Exception invoking on_object_inserted. obj: object_fish_KissingGourami:0x0279127d9cca5dba, owner: ObjectInventoryComponent(object_FishBowl:0x00f1127d9de40018) (AttributeError: 'FishBowlTooltipComponent' object has no attribute 'default_state_concatenation_style'), CategoryID: tooltip_component:688
I still need to figure out what's causing the book issue but now I have this to figure out.
I found what was causing the issue with the books. It was a mailbox I had in an older group of mods. I also discovered while testing my mods that all custom foods and drinks caused last exceptions for me. At this point everything is resolved except for the fish bowl issue. My sims can fish without problems but they can't put any fish in a bowl without causing a last exception while in base game with no cc. I noticed my cc aquariums no longer function at all either. Could be there a bug in the game itself with the fish?
@BumblingBard I'm pretty sure I've seen references to fishbowl bugs. Head to Bug Reports separately for that.
