Ram usage increasing during rendering

[subpixelsk]

I´ve encountered strange issue today. I´m working with quite a heavy scene (scatters, forestpack, lot of lights) and I wanted to use global volume mtl as well . However this is not possible because my ram usage would constantly grow during rendering with volume mtl enabled to a point where all my ram is consumed and rendering crashes. When turning the volume off everything renders fine at constant ram usage

Corona RC7 + Max 2016

[maru]

Can you upload the scene where this is happening?
https://corona-renderer.com/upload

[Ondra]

this should be fixed in RC9