I think so? if you mean the intro part, that wasn't an issue. I got to the point where after getting the float spell, i watched as the rock rose upwards, and then was just stuck behind the ledge and couldn't continue. I figured dying would reset the spawn point, which it did but it also removed getting the spell at all- that, and I can't make the jump to the rock itself regardless.
Huh... idk what to say. Just tried it now and I can jump just fine... what a weird bug, sorry about that. :0
I wanna say try another browser or something but I have no clue that would even fix. XD