Glitchy Glitch Slides in Meet Cosmo

So I was, for the first time, going through Meet Cosmo (it was pretty long) until I came to this place with slides and rope ladders and I had to get this key to free a Koala, but when I went on the slide I got... teleported into the void?

So this kept happening and happening until a Phantom put me to sleep, I decided to take a different route and the same thing ended up happening with a different slide, except there were no Phantoms.

I ended up just quitting the adventure.