Well, I raised my vassal levies and went to war. After the war I tried to dismiss my levies through military screen but no! I can't dismiss them? I'm not able to dismiss them? Why?
No no. I mean I didn't raise realm levies. Just some of my vassal levies. But I can't dismiss them. Button is grey.Just a guess but are any of your troops locked in combat? It's possible to some remote army is fighting rebels.