3DS MAX to UE4 has some nearly zero tangents which can create some issues, zero bi-normals issues. - YouTube
Mesh imported fbx from blender appears to be broken and having transperent surfaces. How can I fix this? - Asset Creation - Epic Developer Community Forums
Add-on: Blender 2.8 For Unreal Engine - BlenderNation
UV Sphere
Procedural Meshes in Unity: Normals and Tangents – code-spot
Degenerate tangent bases and nearly zero bi-normals - Modeling - Blender Artists Community
Trying to import a level from blender to unreal engine but keep having problems with uvs - Pipeline & Plugins - Epic Developer Community Forums
Construction of the tangent vectors T 1 and T 2 orthogonal to N 1 and N... | Download Scientific Diagram
Degenerate tangent bases and nearly zero bi-normals - Modeling - Blender Artists Community
Do any of these errors actually matter when importing a mesh? "No Smoothing Group Information Was Found" & "___Has degenerate tangent bases" & "___ has some nearly zero bi-normals" : r/unrealengine
Mesh deformation and errors when importing from Blender (nearly zero bi-normals, nearly zero tengents, degenerate polygons...) - Asset Creation - Epic Developer Community Forums