Put the summary of the bug you're having here

I am working on a resource pack for use between friends containing many inside jokes and therefore explicit, and I renamed a ton of items and blocks. The renames were working perfectly fine on version 1.15.2, but did not work on 1.16, and stayed as their default names.

I can't add an attachment because the whole thing is 400+ megabytes so ill just post a few textures and the file in question.

What I expected to happen was...:
I thought the renamed items and blocks would show up renamed.

What actually happened was...:
They stayed their default names.

Steps to Reproduce:
1. resourcepack > assets > minecraft > lang> en_us.json
2. rename items or blocks
3. play on 1.16.