Yesterday, my friend crawled under a train. He lay down and crawled under the train I marked on the map. He could crawl, but when he reached the wheelbase, he got stuck and couldn't move anymore. The flip animation or any other animation didn't work. There was a problem with collision. After trying all the movement and interaction options, nothing worked. There was only one solution: I had to shoot him. Please work on the collision and check all the trains, as I think the problem isn't limited to this spot.