An FBX exported from 3DEXCITE DELTAGEN fails to parse correctly in the latest FBX SDK and crashes the UE importer.
This FBX is automatically repaired when loaded into Maya (citing "polygons with overlapping vertices"). We should find a way to do the same thing.
Try importing the attached FBX.
Upd. Setting regression NO as issue reproduces on //UE4/Release-4.26.2 CL 15973114
Upd. Repro rate 3/3
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-136005 in the post.