No XP Progression On Classes/Heroes/Vehicles/Etc At End Of Match Bug

This always happens to me whenever I am in a lobby and level up a class at least twice and have two skillpoints, at some point after that it won't register anymore exp until I leave the lobby and apply those two skillpoints. Once I do and go into another game then it is fine, but it is so annoying to do after every couple of levels if I am in a good lobby.