Lines in reflections of C4d scene

Development Pipeline & Plugins
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1

I’m getting weird lines on my models - seen only when light reflects on the mesh. What am I doing wrong? Imported from C4d with the Datasmith plugin. Thanks!
Lines-01
Lines-02

2

Can you check the wireframe to see if you some of the mesh triangles matching those areas?
What type of material are you using?

3

Thanks @UE_FlavienP I think I sorted it out - caused by not incl. the UVW tag on the “Save project for Cineware” file. I did some tests and the lines seem to be gone. Just to answer your questions - the lines didn’t correlate with the wireframe and the materials are from the Megascans. Thanks for the prompt reply ))