Mac mini won't always sleep under Mavericks - iPhoto related? The issue I have the mini is set to sleep after 15 mins of inactivity. I use this as a desktop and Plex Media Server. It can sleep automatically after use without issue for days and then I can come back to it and notice it has not slept since the last time I used it. Once this happens, it won't sleep again under the schedule until I reboot it and then the issue will happen again at some point. Using pmset -g it says that Plex Media Server has prevented sleep. The weird thing is, I can go days without this issue and even streaming movies to clients inbetween. The one common thing I have only noticed is it only seems to happen after I have used iPhoto. If I use iPhoto and haven't been using Plex, the sleep issue still happens and when I use the above command, it still reports Plex Media Server as the culprit. I have iPhoto & Aperture turned off in the channels under Plex. Has anyone seen similar behaviour or have a solution?