I bought the Necron Overlord last Stand dlc since 2 week now. When I try to play with the Necron overlord it appear at lvl 0 with no gear except 3 elites tokens. And When I play a game with him at the end of the session, the experience award screen appear but he don't lvl up at all. The problem is that its experiences points are a huge negative number like -2147479808/0 XP.
My name ingame is Kyl and I precise that I have this problem only with the necron, I bought the Tau dlc also and don't have this kind of bug with it.
Another thing, when I launch the last stand, I get a message like : recovered data, the loading of your profile data failed. However, much data has been recovered in the stat.
I already try to reinstall the game and check the integrity trough steam, but I think this problem come from the server side and I have no control over the save state of my account.
Here 3 screenshots to show all that I mention before, I hope it can help :