the obstacle you grabbed is 12 studs above the 2 stud tall thing you are supposed to jump from, but you landed in a way that roblox thought that you were standing on the platform below, but at the same time you were inside of the 2 stud tall thing, so roblox updated moving you up 2 studs, but you did it so fast that roblox did the same things 2 times without begin able to check again, so you moved up 4 studs instead of 2, making you able to grab that. this is really really rare without setup and its similiar on how the lhj works
@@zbritishteaman no that comment is literally the stupidest thing ive ever heard, you only get extra jumppower from those 2 stud blocks because your legs sink in