Degenerate Tangent Problem

Development Asset Creation
1

I just made a scar H model and when i import it it say it has degenerate tangent what is this and how to solved it?
i made it in blender

2

Have a look at my answer on this thread: Degenerate Tangent Bases - Rendering - Epic Developer Community Forums

Ultimately, you’ll want to fix your UVs for your mesh.