OK hi Yes The Pink Glitch has been reported but when the hub Npc’s updated last year they were changed to reasource pack NPC’c and were immine to pink glitch. Today When logging on to the hive:
Its probally just some new update my MIcrosoft but still im sure this wasnt supposed to happen
Hello!
Thanks for taking the time to submit this bug report.
This is commonly referred to as the ‘pink glitch’ and is unfortunately a Minecraft bug. Hopefully there will be a patch for it in a future client release.
In the meantime, I would recommend giving it an upvote on Minecraft’s bug tracker: [MCPE-105487] Textures change to pink when playing for long periods of time - Jira 5
Hope you have a wonderful day! 
