Transparency issue for my opaque static mesh

[abhishey0dey]

![alt text][1]

This is my original model made in Blender.

This mesh has three materials, one for the plywood, one for the desk and one for the handles. Imported as Fbx into Unreal it looks like this:

There is a transparency issue, also the shadows are going through the mesh.

[engelmanna]

Your normals are inverted in your mesh. You’ll need to fix that in blender and then reimport.
Check out this page for details: https://www.katsbits.com/codex/flip-normals/