Can't finish a quest in mercenary

Hi support, I actually got a problem with the 5th Xyrella task in mercenaries, it says “finish a run at level 30”, I literally made 6 runs with a level 30 Xyrella, at different levels and with a team with full level 30 characters; nothing happened. Need help because I’m literally stuck with that quest.

same problem here, but with murlok quest lvl 5