I discovered a pretty bad bug today while playing one of my custom factions.
When I charged and took over the Dead's capital city Calebthornsomething, my Umberdroth kept on vanishing...
I rage reloaded because I was sure it survived.
Then attacked and took it over, my umberdroth vanished again.
Reloaded, and it vanished everytime I attempt to take over Calebthorn.
Then on fifth try.... I took the umberdroth out of my army and attacked Calebthorn, took it. My umberdroth didn't vanish, with me being satasified for once, and told umberdroth to enter the city, poof, it vanished!
Has anyone run into the bug too? I have a save ready to upload if needed.