Król Entertainment

I gain 9000 xp all the time and it fails to level me up, it will show that I've leveled up after the mission but when I get back to the forge I'm still the same level i was before. Right now im level 20 right now and I should be level 26. So it's only happened six times to my record because it seems to happen most when the xp bar is close to leveling up, and I should really only have to play one mission, and I do and it says ive leveled up, but than I get cheated and have to play a second mission. Very frustrating.