Strange behavior on my ride today. Was doing a workout, paused it a few minutes in (as I was stuck at a light), restarted it (done this many times) and continued on my way. When I got home, and uploaded the ride, I realized it's missing the gps data for the first 30 min or so. However, lap data for time, HR, power etc all seems to be there and correct. The unit didn't reset or appear to have any issues (though I was not looking at a screen with speed or distance on it). Anyone else have this issues before or know how to recover or maybe more important prevent that missing GPS in the future?