SP3 preview vray proxy not working

V-Ray V-Ray for 3ds Max Issues
1

First I thought it was totally broken, but nope, most of my vray proxyies work. But there are two, not really different, that just won’t. They remain a box when I click preview from file. They won’t import mesh either, BUT they WILL render lol

Any ideas? Not sure what else to say.

2

Actually, it CAN import mesh. I just found the mesh imported. It was huge and distant. Probably a problem with scaleing before making a vray proxy. I usually reset x form but sometimes I forget. Still though, it worked on SP2.