I tried climbing a ladder to the roof in a factory building near the coast multiple times, but I got stuck everytime at a certain point, unable to proceed. Unfortunately I can't precisely locate the Building but I assume the problem persists with the Building Model in general.

I forgot to Snap a picture of the Building from the outside, but it's a Factory building with a lot of ladders and walks aswell as a staircase where the problematic ladder is at the top of the staircase.