Is this working as intended? I owned the two leftmost provinces in Morocco as Portugal, a small army of 9 rebels popped in the bottom province an started sieging. After a very short time (as far as I could tell they didn't actually take the province (maybe they assaulted?)) these two provinces reverted back to Morocco without any message or anything, all i got was a reconquest casus belli on Morrocco, I'd managed to make Casablanca into a core just prior to this happening. Is this really how it's supposed to happen?