map gets blury when held

What I expected to happen was the map to work normally.
it should be the same as always

*What actually happened was when i hold it or have it in an item frame it becomes blurry.
i hold it and its blurry. when its in an item frame its blury.

Steps to Reproduce:
1. get a empty map
2. map the world
3. hold it/ look at it
then its blurry