Help with avatar materials showing up in blender 3.6

Hi.
Is the first screenshot from a tutorial?
In the provided blend file the material is not compatible with newer versions of blender. This means the path in s4s settings leads to an old version of blender
If this is the case, delete an old version of blender. Make sure you have s4s star, install blender 3.6.7, change the path in s4s setting to blender.exe in Blender 3.6.7 folder, export the blend file again. Now all textures should be present. To choose the hair texture in the uv editor, select all uvs with A, then choose Diffuse in the drop down

ive only just now noticed that you already have blender 3.6.x, so no need to install 3.6.7 ( if you have a different version )