Ue4 crash to reimport static mesh on 4.11.1

i want to reimport a file fbx and make a redirection of file… then Ue4.11.1 is crashed… 5 min after i go this steps:

export fbx mesh to file… on soft 3D “maya, 3dmax, etc…” fix this mesh if get some mistake and dont make reimport… just import it again like when you start a project.

and is solved.!