Some textures displayed pink in Andoird build

Godot Version

Godot 4.1

Question

Hello everyone!

I have a small test app which displays a room, where I change the wall textures using set_surface_override_material(). This works well in the editor and in a Windows build, but in an android build some of the textures are displayed as pink areas while other textures work normally.

I checked that the import settings for the PNG files and the settings in the respective StandardMaterial3D are the same (apart from the used texture itself and UV scaling) but still some of the textures work in the Android build and others don’t.

Is there something I am overlooking import or settings wise that can cause the materials to be broken in a build?

Thanks in advance for any hints and ideas on this issue, every answer is greatly appreciated!

Best regards,
Patrick