Error:

The game crashed whilst rendering screen
Error: java.lang.NullPointerException: Cannot invoke "java.awt.image.BufferedImage.getWidth()" because "☃" is null
结束代码：-1

The event:
When I tried to open the Minecraft Realms configuration button (wrench), the game said Save World, then flashed back!! (attachment)

What I've tried:
1. Reinstall 1.17.1
2. Reinstall the game launcher
3. Update Windows to the latest version
4. Log out and log in again
5. Modify firewall configurations
6. Reinstall Java(64-bit)
Result:

The problem remains unresolved...

It has been maintained for many days!!

I think:

Fix it quickly, or Realms will lose days