Stuck in Mission – Tri-Towers Objectives Not Completing (Solo and Co-op)

I’m stuck in a mission. The game says I need to complete one of two missions in the Tri-Towers area, but I’ve already completed both, in solo and co-op modes.

My Steam ID is: lazty

can’t progress in the game. I’ve tried everything, but the missions never get marked as completed.
I’m really frustrated and I need help to solve this issue so I can keep playing.