Switching classes on servers with class limits bugged

Last night I noticed that on a server with class limits, you can't switch to a different endorsement build if your current class is at maximum capacity.

So if there's a limit of, say, 2 tanks and you are one of the 2 tanks on the team, you can't switch to a tank with a different endorsement loadout (assuming you have more than one build).

Another thing I noticed is that sometimes the game refuses to spawn you after you entered the change class dialog screen and got out of it again. The countdown timer disappears and all you do is watch the map. I know that if you miss your spawn while in the class selection dialog, you're supposed to wait another ten seconds, but I'm talking about a bug where you don't spawn at all. It seems to have something to do with the class selection, because every time it happens to me, I don't have any class assigned when I press Tab. And I can't bring up the class selection dialog either, so I'm stuck watching the game.

These problem happens on the XBox version as well.