Import Scene crash

Hello,
I’m using the latest Unreal Engine (4.11.1) I have a scene on AutoCad and I export .fbx only with objects (no cameras, materials, …) and when I import the scene using the default options I always have a crash. I try to use AutoCad 2015 and 2016 but the crash persist.
Thanks!

Log

Hey Jakuya,

Try exporting your scene as a .FBX 2014 file extension if you can. I noticed a few errors in your log that you will want to address.

StaticMesh_1 has degenerate tangent bases which will result in incorrect shading. MikkTSpace relies on tangent bases and may result in mesh corruption, consider disabling this option.

Invalid vertex normals found for mesh. Forcing recomputation of vertex normals for MikkTSpace. Fix mesh or disable “Use MikkTSpace Tangent Space” to avoid forced recomputation of normals.

You need to clean up your model, and might I suggest breaking it into smaller chunks so you can polish and remove any floating vertices and improper geometry.

Use the Static Mesh Pipeline documentation to familiarize yourself with the appropriate terminology and suggested workflow. Let me know if you have further questions or need assistance.

Thank you,