Sometimes, while you are playing in survival,(haven't tried on creative)
you spawn on the right location but not in the right height.
I doesn't always happens, it's kind of random when it happens, anyway..

Steps to Reproduce:
1. You stay in a place.
2. Get out of the App, but first need to get out of the world.
3. And you are; up in the surface, if you a caving or up in the roof of your house, if you're at home.
(THIS DOESN'T ALWAYS HAPPENS, IT IS RANDOM)