It's the internal Iphone 4S GPS. The laps and video were automatically triggered. The track is Atlanta Motorsports Park. It's worked fine in the past.

Thanks.

I looked back at all my laps from yesterday. Some have data in the Data Recording section, and show the appropriate number of Fixes. Those without data either don't show the Data Recording section at all, or show: GPS Sensor Internal@0.0 Hz Fixes 1 (GPS, ACCEL) I guess this means that the GPS wasn't...

I've got HLT Grand Prix. I recently upgraded from Petrolhead, because my laps didn't contain any data, just worked as a lap timer, and I hoped the upgrade would help. Now I've got data that shows on the charts, etc., but when I tried to overlay a video, I got "Master video ok, overlay data miss...

I have followed all of these steps, and in the Video List under MultiCam iCloud, it still says "iCloud is disabled currently. To use it, sign in first. . . ." I even took it to an Apple store, and they confirmed that everything is set up per the instructions, including being signed in. Can...