oh its where after leaving a platform, u still have like 2ish frames to jump, so sometimes if u click jusp at the end of the platform but u click a tiny bit slow it still jumps. seems small but actually helps a LOT
If you get the time I have made an improvement to the jump system you might like so now when you mis a jump or click a little late you can jump once mid air or double jump
the game seems more playable now, you can alway jump as long as you touch something like a wall (i don't know if its an intentional feature but it help so i'm not complaining XD)