Perhaps the setup in the attachment - or some variation thereof - would be able to fix the level? Portals, if and when they're introduced, may work better than teleporters for this.
Unfortunately neither that nor portals would help, since the exit needs to be accessible from the start
and locked. The level in question is Sensational 12 "Falling Forever" from
Lemminas (attached). In this particular setup, placing terrain beneath the exit would ruin the whole point of the level.
I guess this is the problem with using niche physics features as the basis for a level, but... well, that's a big part of my level creation style
Hopefully, if Floater/Glider exit behaviour is removed, we get the
Vortex object
I'm suddenly back to thinking that would be the best solution for everybody.