generated collision is flipped when interacting with physics actor

[Snow]

repo setup

• place a RealtimeMeshBasicUsageActor in the scene
• place a bunch of cube static meshes above the RealtimeMeshBasicUsageActor
• enable simulated physic and gravity on the SM cubes

result

The SM cubes falls through the RealtimeMeshBasicUsageActor and lands on the bottom inside face of RealtimeMeshBasicUsageActor. Hopefully this image can better illustrate the issue:

[Chris Conway]

This should be fixed in latest!

Thanks!