Cant get the book enchant protection IV on diamond chestplate, leggings and shows - fix it as fast as possible old

Summary: fx
“Can’t apply Protection IV (Tæthed IV) to chestplate or leggings”

Description:
Forklar problemet detaljeret, fx:
“In version 1.21.30 (Bedrock), I can’t add Protection IV (Tæthed IV) to a diamond chestplate or leggings in an anvil. No conflicting enchantments are present, and the anvil says ‘No output’. This seems to be a bug.”

Steps to Reproduce:

1. Place diamond chestplate in anvil

2. Add Protection IV book

3. No output item appears

Expected Result:
You should get a chestplate with Protection IV.

Observed Result:
No output / cannot combine.