Bugs I've encountered so far:
- The bug that generates all random characters of certain cultures with the same name, e.g. I had a Serbian peasant revolt yesterday, the leader and his entire court was named Martin.
- The bugs with the Mediterranean portraits introduced in 2.2 still persist: enlarged and misaligned eyes, ghostly beards and whatnot.
- Misaligned mouths in Western portraits.
- Orthodox councillor models are replaced with vanilla Western councillor models for Orthodox heretics since 2.2.0.2.
Yes, the Western portrait mouths have been misaligned since a patch after RoI and to me is the most annoying bug.