This was on the end event of the level, in the area with the bell. While we were fighting the rat ogre after dropping the bell I firewalked over it and ended up stuck. The fire walk was initiated from roughly the location of the fire pit seen in the first screenshot.
https://steamcommunity.com/sharedfiles/filedetails/?id=2106829883
https://steamcommunity.com/sharedfiles/filedetails/?id=2106830094