My map turned pink and a couple seconds later both of the character arms turned white and then just disappered

Same here, but mine looks slightly diferent. It goes away if I remove the map from my had and select it again, or If I load the save again.

Also, I'm playing in 1.14.30

I'm having the same issue. I'm playing on beta 1.15.0.51 on Xbox. Saving and exiting sometimes makes the game crash but it's the only thing that fixes the issue. My skin also turns pink, though. I tried to uninstall it and reinstall but that didn't fix it. 

it keeps happening i have to save and come right out and go back in to the game from the begining 

 I have attached some of your images from twitter to this bug report.

mine happens almost daily when i play it please can u sort this out it is getting so red up with it 

that's only for seconds, and is also available under win 10.

Thank you for your report!
However, this issue has been temporarily closed as Awaiting Response

Is this still an issue in the latest version?

If it is, please be sure to include steps to reproduce the problem:

Steps to Reproduce:
1.
2.
3.

Observed Results:
(Briefly describe what happens)

Expected Results:
(Briefly describe what should happen)

If your ticket does not look like the example given here, then it's likely to be closed as incomplete.

This ticket will automatically reopen when you reply.

Quick Links:
📓 Issue Guidelines – 💬 Mojang Support – 📧 Suggestions – 📖 Minecraft Wiki

Cleaning up old tickets: This ticket had been set to 'Awaiting Response', but has not received a response from the reporter (~3 months+) so is being closed as Incomplete. If you feel this is still a valid issue then please comment, or create a new ticket following the Issue Guidelines which includes steps to reproduce the problem.

For any account or purchasing related issues, please contact Minecraft Customer Support directly, as we cannot assist with those here at the bug tracker.

Quick Links:
📓 Issue Guidelines – 💬 Mojang Support – 📧 Suggestions – 📖 Minecraft Wiki