How about in Transit? I always get stuck trying to jump out of that base of the stairs thing, right by the human base. (The one that has the rail broke at the top level, and a small indent in the bottom, where I get stuck.. it's very bad, when a Dretch is in there with you & you're running low on ammo or health.
EDIT: How about when jump limit is on, it stops if there is a surface nearby low enough to jump onto? Like walljumping, except different... IDK if it's possible. Or, instead of completely limiting jumping, make the jump interval less ie you only have to wait 2 seconds for it to come back?