Slo mo video playing at regular speed
I've recorded several videos in slo mo mode on my iPhone 6 Plus and they've worked just fine. However, today I recorded two videos in slo mo mode at 240 fps, and when I went to play them back, they played back in normal speed.
The videos have the circle icon in the lower right corner of the screenshot indicating slo mo mode, and they also appear in the slo mo album on the phone. But they play back in normal speed.
When I exited to the home screen, then reopened the camera app, it recorded a subsequent video correctly.
Anyone else with this experience? Any advice?
iPhone 6 Plus, iOS 8