On the Nikon D-850, in order to record video, you have to switch to the video mode and turn on Live View. Every button and switch work just fine except for the video switch and LV button. Even the directional buttons right above it works fine. I've tried closing the housing while holding the video switch to the correct location. Any attempts to toggle it back and forth result in the cameras switch getting stuck in the middle. I've tried putting it on video mode, closing the housing, and the LV button won't do anything. Anyone else with this problem? I've already removed the rubber viewfinder thing and I don't have a plastic cover on the LCD. The housing seals just fine and like I said, all buttons except these 2 work perfectly.