I have scene that was made with Corona build 2013-09-17. And there is a fur carpet made by MultiScatter (about 300 000 units of fur). Before I had no problem with it (it's took about 6-7Gb RAM). But now with last build of Corona my computer just falling in coma if I try to render this scene. It eats all available RAM (16 Gb) and just die. But if I set up about 120 000 (it's tare about 6GB RAM) instead 300 000 it's everything ok. When I rise quantity of units in MS more than 120-130K I getting again problems with using RAM...
All settings almost Default except post processing and Gamma.