I tried on the daily, and a single player campaign, and when I click to start the match, my BG selection grays out but it never starts. Pvp works though, but often I'm too anxious to do that, and it's nice to be able to do the dailies and test this or that. I tried the 'repair' option, but it didn't fix it. Tried different BGs too. I think this just happened today, I believe I could play normally yesterday. Edit: I just loaded up the game now and it works again.