Recent iRay Rendering issues in Viewport

poorman_65

This has been a problem since I updated with 4.10. The renders in the Viewport are failing quite often with the following error. I can push the Render button and the Render works fine in the window that pops up. However, I have to quit Daz and restart in order for the Viewport to work again. It was working fine until the past few days.

I also have an occasional hiccup that happens where the Figures arms will jump out of position and end up through their body. This is without doing anything. I'll just be looking at the screen and poof, there the arms go. I can't Undo this. I have to reload the Scene (or re-position):

2017-12-11 04:49:32.770 WARNING: dzneuraymgr.cpp(307): Iray ERROR - module:category(IRT:RENDER):   1.0   IRT    rend error: Cannot render. No devices activated.
2017-12-11 04:49:32.770 WARNING: dzneuraymgr.cpp(307): Iray ERROR - module:category(IRT:RENDER):   1.0   IRT    rend error: No devices activated. Enabling cpu fallback.
2017-12-11 04:49:32.770 WARNING: dzneuraymgr.cpp(307): Iray WARNING - module:category(IRT:RENDER):   1.0   IRT    rend warn : All devices disabled.
2017-12-11 04:49:32.770 WARNING: dzneuraymgr.cpp(307): Iray WARNING - module:category(IRT:RENDER):   1.0   IRT    rend warn : There are no devices that can be used with IRT (Compute Capability 2.0 required)
2017-12-11 04:49:32.770 Iray INFO - module:category(IRT:RENDER):   1.0   IRT    rend info : -------------------------------------------------
2017-12-11 04:49:32.770 WARNING: dzneuraymgr.cpp(307): Iray ERROR - module:category(IRT:RENDER):   1.0   IRT    rend error: Cannot render. No devices activated.
2017-12-11 04:49:32.770 Iray Render error: No sufficiently capable GPUs or selected device combination not supported.