Built-in Add-ons' names don't get update when launching the game.

Step to reproduce

1. Open "Minecraft Preview for Windows\Content\data\resource_packs\music_features\texts\en_US.lang"

2. Change “pack.name” to something else, like “pack.name=Music on123 the Move Add-On”

3. Open Minecraft Preview.

4. Check the Music Add-on’s name.

Expected result:

The Add-on’s name would change to the string you edited.

Actual result:

They stayed the same name. Making the Add-on’s name stay as “Music Features Add-on“ instead of “Music on the Move Add-on Add-On“ if you’ve played 26.70.23 or former versions before.

Note

The pack’s description does get updated if you change it.