I have found a solution in my case in FSX (also posted on ORBX forums).
I started looking at why some views showed the issue and some did not. It would even happen in the primary VC view but, not in co-pilot view of the same AC at the same point.
For me, deleting "ClipMode=Minimum" in the camera views where it occurred within Cameras.cfg (and within an AC's aircraft.cfg where necessary) seems to have solved the issue. I assume deleting that entries results in a default value of "normal" for ClipMode, but, I am not sure.
I do not know if there are other implications to that change, but, have not seen any so far.
And, of course I backed up my cameras.cfg to be safe . . .