I was able to get stuck in that location. Looks like I have FORWARD_DISTANCE_MUL a little too high for that spot.
Set FORWARD_DISTANCE_MUL to 3.0 or lower, that should fix that issue. I don't plan to add an unstuck feature because it checks the location if you fit there. It shouldn't let you mantle to spots you can get stuck on. I'll update the default value. Thanks!