Mausolin XP bug???

[(PSN)AbBaNdOn_]

My mausolin i have forma'ed and maxed and used on mech and on ground.   Never noticed a problem.

Today i needed 4 more levels on Gara 26->30  so i take my augmented spectro build to a defense mission.

I did 2 rounds/10 waves with a full sqaud.  Then they all bailed and i did 3rd round/5 waves alone.

At the end my Gara only got to 27....  That is NOT right.

I am blaming the Maus for the lack of XP.   Like it is super busted and not gaining any affinity on foot....  Or its busted in the mech way in that there was a host migration,  thought i was a mech/mech weapon and reset affinity gained.  Maybe only counted last round which still would feel wrong.

It felt like i only got xp from my ability kills or something.   Like i said i used Maus alot and it WAS working fine.   Now?  Feels broken.  Maybe maxed version stops gaining affinity?  The maus didnt show up in end of mission summary either.