I did go to fly this morning my maverick air and there was firmware update, so updated, right after the update I got strange vertical thick lines. I did not update app just drone firmware and right after that update  thick lines apeared. Video recorded on my iphone seems unaffected, did not check sd card yet. Here is screenshoot

I don't see any screenshot.

hope you can see it now
trying to upload it again

It's a setting you can turn on and off in the camera settings, it's to show you overexposure in your composition.

Overexposure warning those zebra lines indicate where you picture is over exposed you can turn off in app.

hallmark007 Posted at 2018-2-9 06:40
Overexposure warning those zebra lines indicate where you picture is over exposed you can turn off in app.

oh, I had no idea, never seen that before. that would explain, up sorry, I just never seen it before, those lines did go away when I tried it back after restarting everything... Many thanks..