I did a Formula RR2 race at Spa last night and I encountered this problem once again. It has been already there before the patch, the two affected places are the Bus stop chicane and the exit of Turn 14. When two AI make slight contact at these places, in most cases one of them slows down dramatically or even stops completely which results in a massive pile up. Here's an example:
this happens in all classes and all tracks occasionally: ill check if it has a bug status but it is known Andi
but the issue is particularly bad at Spa, it happened twice during this race alone and something similar happens in almost every session. but I can live with it if there's no better option