I have some slo-mo videos that I recored with my 5s and then imported into my Aperture library. When syncing my 5s the slo-mo videos would show up in a dedicated "slo-mo" album on the phone. With my 6 the album still shows the slo-mo videos but now they only play at full speed. Has anyone else noticed this? I'm guessing is another iOS 8 bug or something.