Can confirm this happens to my Skin as well. The View Model has Pixelated garbage and the skin texture has random overlaid effects on it.
When I spawn into the World and I was holding an item, my Skin on the Pause Menu does not show corruption. When I spawn into the world and I was not holding an item, my skin on the Pause Menu corrupts.
In game, the texture used for the Character model in the Crafting Window, is always corrupted.
This only appears to be impacting the Body model not the Head Model/Object.
Confirming this bug still exists in Version v1.17.0
Platform tested against:
Windows 10 Bedrock
Check this Bug Report:
MCPE-130275
Your report was a duplicate of that one.
I am NOT a Developer or in ANY way related to Microsoft or Mojang.
Just a player trying to help you out.