what happens

When enchanted, armor and some items have a bugged texture, for example if the armor is made of diamond, the texture turns blue and alternates slightly like the enchantment effect and this applies to the shield as well.

how I found out

I discovered this when I entered my world, I soon came across the shield and went to check the armor too, it is likely that this usage applies to other items as well.

observation

On the other hand, this bug was not present on my previous device, which was a Redmi Note10, but it was always present on my Galaxy 20 5G since version 1.20 of the game.