but the problem is the materials are not applied correctly and they are all pure white.
the second problem is that meshes are exported separately and not in 1 piece how do I fix this? I haven’t really worked with blender that much
As far as I know Material transfer between Blender and Unreal is not supported. So you have to manually import the textures and set up the material in UE.
And to import the meshes as 1 connected mesh you have to select a checkbox during import.