This has happened to me one and I've heard others complaining of it in teamgames. Occasionally, there will be a long pause after the load screen, where you can't move your units. Then finally it gets going, but no commander portraits appear in the UI. You can't pick a commander at all. No tabbing in or out or going to the tac map will fix it. You're just stuck with no commander the whole game. Have others experienced this?
I have. But just once in 1000+ games.