I'm using the latest versions of the app and firmware on my P2V with a Motorola Moto X phone. About once out of every six or seven flights, the video will go black during the flight and not come back until I land, shutdown the 'copter, then restart it. The altitude, distance, and all continue to display, but I can't see any video. The video recorded on the SD card, however, is fine.
-- ROger