Custom Textured part does not render correct

[Travis Cobbs]

Oh wow. This gets interesting :-)
I noted too that a rotation step sometimes "fixes" the problem.
Would it help to rotate the parts just a 0,1 degrees or something?

Probably not. Open up the cli.ldr that LPub3D creates and leaves in a tmp directory underneath the original test.ldr and spin that cli.ldr around in LDView. You will see the texture appear and disappear, but it can disappear for relatively large angle differences. Same when you zoom in and zoom out.