The latest beta was released, but I encountered a lot of problems after the update.
Just like this,When I enter the game,First, the screen is white, then it turns black, but after the screen turns black, the game is playing background music.
I don't know exactly why,And when I went back to 1.16.4 and updated to 1.16.200.52, it still appeared this situation.However, this situation did not appear in this version of 1.16.4.
I provided some information about my computer, hoping to help you find out why.
CPU:AMD A8-7100 Radeon R5
Display card:AMD Radeon R5 M200 Series
Linked issues
Attachments
Comments 3
Sorry, I tried your method, but this will still happen😞

Thank you for your report!
We're tracking this issue in MCPE-84857, so this ticket is being resolved and linked as a duplicate.
If you would like to add a vote and any extra information to the main ticket it would be appreciated.
If you haven't already, you might like to make use of the search feature to see if the issue has already been mentioned.
Quick Links:
📓 Bug Tracker Guidelines – 💬 Community Support – 📧 Mojang Support
📓 Project Summary – ✍️ Feedback and Suggestions – 📖 Game Wiki
-- I am a bot. This action was performed automatically! Please report any issues in Discord or Reddit
Have you tried a full reinstall of the game?
Backup any data you don't want to lose, then try the following:
Backup your MinecraftWorlds folder (if you want to save your worlds) (Device storage > games > com.mojang > minecraftWorlds)
Uninstall Minecraft
Delete the com.mojang folder (Device storage > games > com.mojang)
Reinstall Minecraft
Run Minecraft and if it works restore your MinecraftWorlds folder
Sometimes a clean install of the game will help with these kind of issues.
You might find the following links helpful:
How to Back Up Worlds
How to uninstall and reinstall a game on Windows 10
Quick Links:
📓 Issue Guidelines – 💬 Mojang Support – 📧 Suggestions – 📖 Minecraft Wiki