Your issue is likely due to missing font support for non-English characters in the web export.

Try these fixes:

1. Use a Unicode Font: Import a font like Noto Sans or Arial Unicode and set it in Project Settings > GUI > Theme > Default Font. \
2. Use DynamicFont: Create a DynamicFont resource, load a TTF/OTF font, and apply it to UI elements. \
3. Ensure Fonts Are Included in Export: Check export_presets.cfg to make sure the font is bundled. \
4. Test Encoding: Print different language characters in the console to see if they are processed correctly.