the armor and elytra enchantment effects have been glitched since 1.20, I'm having to provisionally use a texture to fix this bug, I waited until 1.21 and no fix, the same problem happens in the beta version.

proof:

https://drive.google.com/file/d/1kTngohW_9eDRLim6KtnJrUnWUCuA9L-8/view?usp=drivesdk