Howdy,
Myself and another Octane user have been experiencing crashes on the latest build while saving renders when the "Buffer type" is set to LDR 8-bit. Scenes are using the new ACES system but even when "Color space" is set to sRGB, and not OCIO, crashing happens once Octane finishes rendering and is saving the image to disk.
This happens when rendering with the Render Queue and Render to Picture Viewer.
We're attempting to export images that have the new ACES "look"/processing, but don't need to be transformed to sRGB/r.709 after rendering in a compositing program.
I've attached bug report and scene files.