RPC's Crash Vray 1.5

[Mike T]

I have placed RPC plants in my scene which is pretty small (27,000 poly's) on a decently fast CPU with plenty of memory. I have 15 rpc plants in my scene using shadows, reflections, and jitter, (no billboard because that's a definite crasher).

 

.......My settings are low to medium and I'm using IR map and Light Cache for 2nd bounce. It crashes my system every time (errrr ). If I hide the plants, it doesn't happen:D.

 

 

Does this happen to anyone and is there a fix or something that can make it not crash?