I was flying around (looking for woodland mansion's with my map) and I suddenly landed on the ground, and got stuck in elytra flight mode, I yook my elytra off... and put on my chestplate... and I was still in flight mode? flying without elytra? it's been happening to me a lot when using elytra + fireworks. It's very strange... Have you had this strange bug where you are stuck in flight mode? I can also jump in the air while in elytra flight, uhm... I hope mojang fixes this, it's annoying sometimes... look in the screenshots, I'm not even flying or have my elytra on..
Also, sometimes I can't enable elytra mode and I got to relog for it to work, That is how I die half the time is when I'm trying to fly and fall off a cliff, and take a lot of fall damage :I