I dn't know what happened with texture??

I m green of unreal editor . I ve no idea why I set all texture in sketchup but it cannot show the texture in unreal engine ?? So I did some test … It cannot get the path of texture whatever I used V Ray texture or skp texture , pics from google … Thx ~

the image 1 is the original texture in skp file , second one is datasimth file imported to unreal and you can see all grass , concrete texture disappeared and I clicked the material panel . It’s grass image … ???