[MCPE-41495] Missing textures and wrong colors

Update on this issue:

This issue with pink and black squares / textures seems to occur on Xbox One after an update, and is usually resolved by reinstalling the game. Please ensure that your world are backed up before attempting a reinstallation.

My Minecraft world (expirmental on) is almost all pink/black except for enitlies.

^{Additional information by [MCPE Mod] Auldrick:}
This has also been reported when using the Education Edition toggle.