It's just a black screen.
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Comments 4
Have you checked that your PC specs are compatible atleast with the minimum requirements?
1.16 lag. MOJANG NOTICE THIS PLEASE! I KNEW IT WASN'T JUST ME! PLEASE PLEASE PLEASE FIX THE ONE IMPORTANT BUG AND NOT THE ONES THAT I NEVER COME ACROSS!

Thank you for your report!
We're actually already tracking this issue at MCPE-84857, so I will resolve and link this ticket as a duplicate.
If you would like to add a vote and any extra information to the main ticket it would be appreciated.
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Pls help.