How to reproduce:
1. Open the “ReproProject.zip“ project
2. Open the “SampleScene“
3. Navigate to the “Window > Asset Management > Localization tables“ window
4. Make sure you see “Indonesian id-ID“ and “Indonesian id” in the “Default” Key
5. Navigate to “Edit > Project Settings > Localization > Available Locales“
6. Make sure that IDs “id-ID“ and “id“ are present
7. Navigate to the “Metadata > Android App Info > Display Name“
8. Ensure a localized app name is configured for Indonesia
9. Build and Run on an Android device that has Indonesian language set as the Default
10. Check the application name

Expected result: The app displays the name “Indonesia“
Actual result: The app displays a fallback name “Localize“

Reproducible with: 1.5.8, 1.5.9 (6000.0.62f1, 6000.2.13f1, 6000.3.0f1, 6000.4.0a5, 6000.5.0a1)

Reproducible environment: macOS 15.7.1 (M4 Max), Windows 11 (Reporters)
Not reproducible environment: No other environment tested

Reproducible with these devices:
VLNQA00460, Google - (Pixel 6), Android 14, CPU: Google Tensor (Whitechapel), GPU: Mali-G78
VLNQA00511, Samsung Galaxy S8 (SM-G950F), Android 9, CPU: Exynos 9 Octa 8895, GPU: Mali-G71
VLNQA00319, Google - (Pixel 4), Android 13, CPU: Snapdragon 855 SM8150, GPU: Adreno (TM) 640
VLNQA00335, Samsung Galaxy S20+ 5G (SM-G986B), Android 10, CPU: Exynos 990, GPU: Mali-G77

Workaround:
1. Navigate to the “Edit > Project Settings > Localization“
2. Add a Custom Locale
3. Set Locale Name to “Indonesian“ and Local Identifier to “in“
4. Navigate to the “Metadata > Android App Name > Display Name > Custom (in)“
5. In the InputField type “Indonesian in“

Note: For every test, use a freshly unzipped project