Not a serious bug but annoying. I have two video card in my render rig (MSI GTX 970 and a 980 Ti). They work great but it appears after performing multiple renders in a single session of Studio the render engines stops using them. The renders understandably start taking much longer and the cards idleness is confirmed by GPU-Z. Has anyone seen this behavior before with Iray and Studio? Restarting Studio seems to fix it.