If you Aether strike and end up in a location thats slightly out of bounds it snaps you back into a valid spot but sometimes you can dash again and leave the area completly ending up in the black or outside of the map zone and get "shoved" back in often leaving it switching from being in the black and a nearby location.

This was annoying but not so bad until I ended up in a place you can only get to with a teleport beacon but there was no return beacon, I managed to cause the glitch to happen again and escape.