Happened twice now:

Crossing between Quarry and Zimmergorsk with a fuel trailer caused it to topple over.
Working on the Zimmergorsk Bridge recovery mission, the concrete slab in the attached trailer has fallen out once I crossed.

Had the same issue when the map came out. I made a post, never got fixed. I was told to move to one side of the portal which never changed the spawn point in quarry. My truck was toppling over on spawn. I just recovered the truck. Finish the map with whats there and never return. So glad I bought the season pass.