im lvl 50 beat warrior in tvhm but flesh stick is still lvl 39...

any ideas why?

it happens, they say it is a glitch. they answered my email with "we cant help at this time, we are sorry for the problem" only way i have found to fix it is to sadly just mod a 50 (knowing you have on legit)

I heard it has something to do with playing online that causes this glitch.
Should be able to fix it by joining another online game with lvl 50s and kill the warrior again.

This is generally caused (every time I have seen it) from fast forwarding to where your online game was in the story.