I was playing as the Byzantine Empire(Nicaea) and I subjugated Epirus, but instead of becoming a puppet it became a tributary, the countdown didn't start, and now 20 turns later, I can't annex them.
So, is it a bug or a 'feature'? If it is a bug, can you fix it? If it is a 'feature' could you help me make a submod that 'fixes' it?
Thanks!
Edit: I've checked it some more and vassalized Achaea and the countdown started without any problems, although they became tributary too. So the problem may be Epirus?