That is correct... and the fact that it was finished made it a little worseI notice this when the render has reached the max sample limit, the controls look like it's paused, but when you make a change to a scene, it restarts. Maybe that's what he was referring too?

Regarding the Bump intensity... I use a combination of 2 values, Bump amplitude and opacity on the material slot.
So I was thinking that Octane bump power = bump amplitude x (opacity/100)