Man, I wanted to like this game but my recent experience makes me wanna drop it. It was my second attempt at properly getting into the game, this time with Invictus etc, and I was having a good time, more or less, playing as Bosporan Kingdom, going for conquering the whole whole Black Sea coastline. After a long, exhausting war with Thrace and their allies, I was hit with a civil war which I couldn't figure out how to avoid, the threshold for it to trigger seemed so low. Already with low manpower after the war, and the defection of my fleet to the rebels, this civil war took ages, slowly crawling along the Black Sea coast, killing endless tiny rebel stacks and siegeing too many forts.

As I thought I was approaching the end of this ordeal, I see that the final rebel fort in north Anatolia was being besieged by a local minor nation, which apparently had. I arrived there with my army as well, but no way for me to intervene. As my rebel faction was down to their last province, at the end of the siege they were fully occupied and fully annexed by this minor nation, meaning I lost a province without any chance to do anything about it. It seems the civil war ended at that point, but no event, no notification, nothing to signify the end of this conflict that tore my nation apart and crashed my manpower to zero.

All in all, this whole experience was the opposite of fun, very unimmersive, and it feels completely broken that I lost land to a random minor without any chance to prevent it. Is this how civil wars usually go or was this a bug?