I submitted MCPE-177946. It was marked as a duplicate of this. Does this bug track the issue with changing dimensions, too, or is that a separate bug?
(my computer has 16GB ram, windows 10)
RAM values are for the game only.
This happened to me.
This happens extremely quickly on Mineplex right now.
I was trying to get a picture, went into fullscreen and the game was solid pink.
More Testing: Going into full screen it went full pink, Exiting fullscreen fixes it. This happened after the characters go pink.
Later:
9GB ram usage. Player icons on pause screen are pink, characters are pink. Dressing room is super pink. Achievements is a full pink screen, but you can leave.
Now it is at 10.5GB! It is unplayable at types. My available RAM in task manager is below 500MB! The settings screen is mostly fine, just a few icons are pink,
Then ram usage jumped down to 8.5 GB suddenly.
After some gameplay, after /hub I saw steeves for a short second and then they turned pink! Now 10 ram usage. Task manager says ~500M-1G avalible.
Now it dropped to 6.5GB.
The drops happen while in task manager.
This bug also affects changing dimensions (but it does not happen 100% of the time). When changing dimensions, the lighting of the previous dimension sometimes persists. For example exiting the nether can cause the nether's ambient light to persist, and entering the nether can cause the overworld's lack of ambient light to persist. This also effects the end,
Entering and exiting water requires being in survival for it to trigger, but the changing dimensions part does not require being in survival to trigger it
Copying the world doesn't help
Restarting the game fixes it
I think exiting water triggers it because entering water makes blocks get bright, but exiting water does not remove this effect,
I will test on other platforms and update this comment