Hi Guys, im using sketchup for 5 months now and using Vray as my renderer. had no problem using it until this recent project came up. The materials in vray material editor are multiplyng. Like e.g I have a material named 'Book' after a few minutes, when I check the material editor box and I see, 'Book1','Book2','Book3'...and so on and keeps on replicating and and then other materials also were affected. it made my 10mb model into 120mb...making my rendering SUPER slow and open,saving,auto-saving really time consuming.

I tried deleting but they keep coming back. Have I done something wrong? virus? How can I prevent this type of problem?