Exporting problem

hello, I
have a problem exporting textures from maya to unreal. This is the first time I try to do this, it is for an exercise that I have to do for school. I used export in fbx format for 2 modeling and an obg for a plane with a modification of clothe in obg. When I import into unreal the modeling is present without problem but the textures are black and I don’t understand why. I used an aistandarsurface with a texture that I connected to base colors.

I am beginers with unreal ,so I think a do something wrong with exportation .

Thank you in advance :slight_smile: