Unicode characters are not rendering when exported to Android

[phil-hudson]

Godot version

4.0.3

System information

Windows 11, Android Samsung A14

Issue description

When rendering a label with Chinese characters, on the exported Android app, they render as the hex value instead of the actual character.

I am using a font that supports these characters (noto-sans), and they render correctly when being run locally on PC, as well as exported to iOS.

Steps to reproduce

Run the reproduction project. Export to android, you will see the error case. Export / run locally or to iOS and you will see that it works correctly.

Please see screenshots attached of the reproduction project:

Error case from android device:

Local run on PC:

Project in UI:

Minimal reproduction project

unicode_android_debug.zip

[AThousandShips]

In the future make sure to follow the instructions and exclude the .godot folder, it helps with size and security

[phil-hudson]

In the future make sure to follow the instructions and exclude the .godot folder, it helps with size and security

updated

[bruvzg]

I am using a font that supports these characters (noto-sans), and they render correctly when being run locally on PC, as well as exported to iOS.

No, your project does not have CJK font, only base Latin/Greek/Cyrillic Noto-Sans font file (full Noto-Sans have multiple files and almost 1.3 GB large), so system fonts are used as fallback and which characters are rendered depends on available system fonts.

[bruvzg]

Unusually, Android includes a full set of Noto fonts, and fallback should work. So there might be issues with the fallback font detection (maybe non-standard system font path on Samsung devices?).

[phil-hudson]

I am using a font that supports these characters (noto-sans), and they render correctly when being run locally on PC, as well as exported to iOS.

No, your project does not have CJK font, only base Latin/Greek/Cyrillic Noto-Sans font file (full Noto-Sans have multiple files and almost 1.3 GB large), so system fonts are used as fallback and which characters are rendered depends on available system fonts.

Thanks so much for flagging, apologies for the issue. I downloaded the Noto font from the Noto SC page, but you're right it didn't include the full charset. Thank you again

[Calinou]

Looking at the above description, this may actually be a bug. godotengine/godot-docs#7481 improves the general documentation on system fonts.

PS: When opening the project in 4.0.3 on Linux (Fedora 38), this is what I see:

I don't even see "tofu" replacing the not-found characters.

[Cliffsky]

I'm observing the same problem when I export the project to HTML5.