I've read the previous threads regarding camera/rendering problems and I have adjusted Distance/Camera properties etc as suggested. However, my problem is not "black" renders.
When rendering in the viewport it's okay. An initial F12 render is also okay but the problem occurs from then on with subsequent renders. I've attached an image file. Any suggestions?
Another Rendering Problem.
Okay I think I've found a solution. This may have been some sort of memory problem. What it's caused by I don't know.
Although I don't know what specifically the problem was, I found that appending the mesh from an official blender build to an octane build solved the problem.

Although I don't know what specifically the problem was, I found that appending the mesh from an official blender build to an octane build solved the problem.

Just an update...
Appending a previous scene to a new octane scene was actually, it turned out, only incidental.
The actual problem was down to having switched between Cycles and Octane and not unchecking both the "Cache BVH" and "Persistent Images" checkboxes in Cycles.
As you were...
Appending a previous scene to a new octane scene was actually, it turned out, only incidental.
The actual problem was down to having switched between Cycles and Octane and not unchecking both the "Cache BVH" and "Persistent Images" checkboxes in Cycles.

As you were...