Correct, when added the cameras are either at ground level or slightly below, depending on the terrain. I had already moved them into place and after changing from one node to another and changed the camera to look at population placement the camera was suddenly at a Y distance of like 1.326e8 (approximate), I could see a third of the planet, that happened twice. Two other time the camera stayed at ground level but was transported across the terrain by several km.
The cameras were moved to places they were never set to. Even deleting commands from the history would not, should not move the cameras to places they were never set to, if anything they would be deleted themselves if I went past the point where they were added or they would probably be under terrain if I deleted past where they were adjusted, like many were when they were added and then moved into place.
I have forgotten to set a camera before also, a few times. But the first camera that moved was the one I had used to compose the shot.
I haven't had it happen in awhile, but, I haven't had time to work on it since yesterday. I will try to get it to happen again tonight, hopefully it was just a weird fluke.
Jeff