the mouse input display doesnt register correctly inside sina for whatever reason, i tried everything i could but as soon as youre inside a map and the cursor goes away, the movement detection takes a huge sℎit.
it is what it is.

basically just turn around on the first platform, jump through the gap, aim for that pillar, jump at the same time you graze the pillar, and then just full jump most of the way, only slow down a tiny bit before the final jump or youll go over the platform.
youll get the flow of it after a couple tries.

and thats it, hope it helps if youre struggling.