The world is generated out of stone! Structures spawn normally but the game is unplayable!

Flat worlds still are working normally but the old and infinite worlds Are generating out of stone!

No ores, no trees, no grass.

on Windows 10 Edition this bug is fixed but I need to update my Minecraft on my tablet to see if it is fixed.

The bug appeared when I updated to 1.14.0.15 Beta.

I will reply with more info very soon.