After a while flying Elytra in creative in a amplified world, I can't anymore fly. I've tried change elytra to no avail, when trying to fly, the wings doesn't extend and I just pummel to the ground.

Hitting shift does the new shift animation for elytra, but no other animations is made.

Exiting and enterting the world doesn't fix the issue, neither does switching to and from survival. But restarting the whole game allows me to fly again.

I've been able to reproduce this issue 100% now in a certain world flying a certain direction and landing a certain way. Made a video, but as it's so big, I've had to upload it to youtube; hope that's ok: https://youtu.be/KDXOsmCGBY0

The world is an amplified world with seed 5868562049842585293 and my starting position is 164 233 124
I need to land on that ridge protruding the arch for the bug to manifest, but it manifests 100% of the time.