I was testing out the new custom dimensions feature in Minecraft 26.20 beta. This glitch will make everything blue
Steps to reproduce the problem.
Create a world with beta api enabled
Make sure u have a behaviour pack with a custom dimension
Open the world and go to the custom dimension.
Leave the world and close Minecraft.
Open Minecraft again and g
o to world.
This also affects iOS
Here is an example world too. This uses the same script as one the Minecraft creator YouTube channel.