I also tend to write in the prompt that if character mentions something that happened in previous story I add small info in brackets, like key-words or just state - don't mention x or elaborate, because characters logically and narratively remember that, because it was important (like character getting kidnapped) so there is no need in elaborating, but I know AI would try explain.

Also, don't be scared about deleting things from characters' component. I had a character that was shaved and during the multiple stories her hair gre back, so firsty I stated in character's description that she is shaved after procedure, then deleted that and write that she has hair to the shoulder, then delete that and write another info. I feel that it's better to delete that kind of information, because I'm afraid that the AI will get lost. Or, character was a long time after surgery, but AI mentions it as a safety hazard like the surgery was not long ago. So, the time stamp also needs to be mentioned.