i beat this level before about a year ago before i had an account with BL and when i finally made an account i played this level and did the exact same thing i did before and it didn't work anymore.
Are both switches in the area right before the sealed-off shaft--the area that you have to use the bubble to jump into, and where the floor closes behind you once you jump in?
I can get past the first set of hedgehogs, fall down the shaft, wind through the second set of hedgehogs, grab the bubble, and jump up to the third section. After that, however, I don't seem to be able to do anything. There's obviously a shaft I'm supposed to climb up, but the way is blocked. Is there an invisible switch that I'm missing somewhere?