Periodically, displays will launch (startup) in the AM but retrieve no content and will display a black screen. The expected presentations are embedded in a "master-container" presentation. Everything was working fine for a few months until we converted displays over to the resurrected Rise Linux Player (which we are truly grateful for) . Since the conversion, almost every week, a random display will fail to present content until the display is restarted. Once it occurs, if not restarted , this condition persists for the remainder of the day and the only thing that resolves it, is a restart or reboot.