Degenerate triangle and TVector Ensure crashes

[Symplex]

@espaghetters

When I imported it, the entire mesh was bigger than the environment I was in. Looking at the blueprint showed that it had a scale of 50.

Correct Scene Properties scaling setting for Blender to UE4/5 is a Metric Unit System with a Scale of 0.01. Converting scene units on import rather than fixing the scaling before export can cause all sorts of problems.