I use a Garmin Forerunner 55 to track my runs. When I combine auto laps (every kilometer) with manual laps (when I press the lap button), the intervals on intervals.icu are not matching the laps. The first interval is always too short and the other intervals are offset to the left. On Garmin Connect, the laps are correct. All the data on Garmin and Strava is correct and complete, so this isn’t a GPS problem. I don’t use any preset training. It doesn’t happen when I only use auto laps and no manual laps on the Garmin.
Below you can see the problem. I included the red lines to indicate where the first few intervals should start/end.
