Meshes w/ negative axis becomes "transparent" in Packed Level Actor

When I try to make a Packed Level Actor with meshes that have a negative axis, those meshes become distorted and transparent. I’m trying to add some variety of my ground meshes on-the-go, but I might have to do smaller ones individually if I can’t find a solution to it.


PLI with Negative Axis.wmv (28.4 MB)

Cheers.