Imported SketchUp model textures issue

Hi all!

Hopefully an easy one.
I’m literally day1 with unreal engine.
Have used Epic’s SketchUp exporter plugin in Sketchup2017 to exit my model from SU. All fine before export.

Imported it in to UE, a few textures have the text/graphic ‘PREVIEW’ slapped across them.

Not sure why… (they are standard textures included in SketchUp). Other standard textures have no problem.

I have a geometry issue as well but I’ll get to that soon.

Ps - complete newbie to EU here, raytracing is all the rage at the moment obviously.

I’m guessing this is possible with UE…

any tips appreciated.
Thanks! Have a good day