I have a few commercial 3d model planes. I cannot get them to slice correctly in V5 using the provided S3D factory files, they work fine in V4. I tried playing with various settings and cannot get the models to slice properly. In the attached pics look at the V4 vs V5 images, in V5 bits are flat out missing.
I think between this, the license change, and other various annoyances I'm going to bail on V5.