Found on my android 8.1.0
Whenever I load the game it is just a black screen
Note: I have to force quit the game in order to play normally 

Steps to Reproduce
1. Open minecraft
2. Play the game for awhile
3. After press home button on your phone
4.wait for a minute 
5. Open minecraft again

Observed results:
After playing Minecraft then leaving it, the going back to play again, it will leave you with a black screen. 

Expected results:
This should not happen and and should show you the loading screen.