I created a door hinge in Blender 4.0 and when I import it into UE5 part of the mesh is missing, but it’s none of the issues I would normally expect. First here is the hinge in Blender:
The hinge is 2 meshes. The upper portion of the hinge is one single mesh. This upper mesh was duplicated, rotated and placed below the top mesh to form the complete 2 part hinge. I applied all of the transformations to the lower mesh within Blender. The normal faces are all correct as you can see.
I have exported it from Blender as a .FBX and imported that into UE5.
Here is the resulting mesh:
You can see the the upper mesh renders exactly as expected. However, the lower mesh, which is just a duplicate, doesn’t renter the cylindrical portion of the mesh. It looks like UE5 just doesn’t recognize the geometry as when it’s selected, the yellow bounding box only shows the flat portion of the mesh and not the cylindrical portion. I would think that the selection outline would show the correct shape if it was a rendering issue.
Any thoughts?
I have no idea why. It’s particularly confusing since the problem mesh is just a duplicate of the mesh that is rendering correctly.