#Had this happen to me earlier today.
1 messages · Page 1 of 1 (latest)
As far as I can see, either the zombie interrupted the climb, or your friend blocked your climbing, so your character started climbing back
And since the bench is not passable, you just got stuck
Unlucky situation, it would probably be preventable to wait a bit before climbing so your friend doesnt block, or not have zombies right behind