I have an idea of why this is happening. It seems to me that the camera is placing the views outside the plane when switching from one plane to another. And when switching from one plane to another it may be saving the z axis from the previous plane.
For example if you are flying the 737max, then you save your cameras, then you switch to the saab340, it will still maintain the Z axis coordinates of the 737max. It is what I just did and it seems like that is what may be happening.