Translation Loading Fails for All Locales Except US English – "Loading translations failed" Error

Steps to Reproduce:

1. Launch the Minecraft launcher and ensure you are running version 26.3-snapshot-7 (Java Edition).

2. In the launcher or in-game settings, change the game language to any locale other than en_US (e.g., en_GB, fr_FR, de_DE, zh_CN, ja_JP, etc.).

3. Launch the game.

4. Observe the language loading process during startup.

Observed Result:
The game displays the following error message in the chat or overlay:

Loading translations failed
Translation file for [language_code] was empty or missing. Restart your game and launcher, then try again.

The game either falls back to US English or fails to load translated strings entirely. This occurs consistently for every tested locale except en_US.

Expected Result:
The game should load the selected language's translation file without errors and display all in-game text in the chosen language.

System Information:

• Game Version: 26.3-snapshot-7 (Java Edition)

• Java Version: 25

• Operating System: Windows 11

• Launcher: Minecraft Launcher

Additional Context:

• This issue does not occur when en_US is selected.

• The issue persists after restarting both the game and launcher as suggested.

• Deleting the assets/objects or assets/indexes folders and forcing a re-download does not resolve the issue.

• The translation files for all other locales appear to be either corrupted, missing from the server manifest, or incorrectly referenced in the language index for this specific snapshot.

Possible Cause:
The language index in 26.3-snapshot-7 may be pointing to empty or non-existent translation JSON files for all locales except en_US, or the game's resource loader is failing to parse them due to encoding or format mismatches introduced in this snapshot.