I have been having this same problem on my two cameras so I downgraded to 1.4.0 on both and still have the same problem. The picture flickers bright and dark while on a static subject on a static tripod. I am about at the point to give up on the camera system it is just too unreliable. It almost cost me a major client this week. Also when in video preview mode I frequently , but not always, lose the ability to preview my exposure settings while in Manual mode. I can open and close the iris and change the shutter speed with no change in the led screen brightness. Then when I switch back to still mode the exposure adjustments I have made immediately take effect. I heard that this might be a result of using "Framing Mode" but this was turned off. Here is a link to the flickering footage. https://drive.google.com/open?id=1ko9s7iaV9gMz0oc3gF3RaiNpZk_sY9Yi
any help would be greatly appreciated.