Here’s a bit of a claustrophobic one, as a player got stuck in a very small portion of the map! Luckily they could still portal out, but it’s quite the weird one nonetheless!
Photoro found themselves trapped by vines at the entrance to the expansion zone, unable to run out. That particular zone actually opens up in the Vessel of Hatred campaign, but Photoro isn’t on that part of the quest yet, so they got very much stuck. Well, at least physically, as they could still just port out and head back to town. It’s still a very weird one, being able to enter an un-exitable part of them map, even if you don’t own the expansion.