Not really a bug, more a level design issues.
Its in “On a Rail”, on the second elevator shaft that takes you up. I drove the tram onto the elevator and it started moving. I then got off an took the ladder.
The elevator beat me to the top. Once I climbed the ladder all the way, the back of the Tram was blocking the doorway and I couldn’t continue. Had to reload a save.
Just wanted to point that out.