Support Music and pictures gone

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http://androidforums.com – All of my pictures and videos disappeared. They are still on my device and I can access them through my file manager and my computer, but the gallery says no items and Google play music and all other music apps show no songs. I've turned it on and off, cleared the data from play music, attached it to my computer and moved stuff around to try and force a scan, and nothing helps. They are on my phone, not an sd card. (General)