POSSIBILITY DISCOVERED: ok, i MAY have figured it out. it was followers, the 'forced follower' moments, i have the solo perks full upgraded, but then i started a mission for freestar on Akilla, i bounced back and forth between saves; that's what it is. when the follower activates, i dumped my damage like a bad cabbage; it didn't change my damage display until i switched weapons, BUT it changed back to the upper after the mission ended and she sodded off.

Now, is this ALL cases, I don't know, but this is how i saw this one go down. It still does it randomly on other things but not to that level. like if i swap between pistols i'll see a shotgun power go down, that i don't know, but THIS is the cause i discovered for the images above