This can sometimes happen when you use the IP interface to set the image flip of your camera. 

If you use the OSD and go into the "Image" section you will see V-flip and H-flip. If you set the image flip from this location you should have no issues with it reverting going forward.

You will need to hook up your camera using the HDMI, HD-SDI, or the USB 3.0 connection in order to see the OSD; it does not show up in the video feed over IP.