I feel like I need a turtuiol video or something because I can't get over it. :( Also I already try that
Huh, well this sucks...i don't really know how to solve this problem as i've seen no one else have this, and game testing everything works fine, but if it helps, either one of your keys is broken, or you are just holding shift THEN jumping, instead of actually getting a running start, then jumping WHILE holding shift. Otherwise, i'll see if i can make this obstacle a little shorter if it turns out somebody else has this same problem.