The teleporter has only one use and it teleports you if you're close enough to a pillar, maybe it didn't work the first time because you weren't close enough. You can also restart the game by holding R, so you don't need to wait until the world breaks by itself. That's why some places are made so you can't exit from them. I hope you enjoyed the game anyway and will give it a second try at some point!
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I will likely try it again today, it would be nice to see how it ends and to know that I was able to beat it. Good to know on the R thing, thanks for the tip. Maybe if I was better at reading that would have made sense, since you clearly put that in your controls. I guess it just didn't quite click for me the first time around