I created a basic workout (warm up, interval, cool down) for my 310xt in GC and when I hit the upload button it tells me:
Garmin Connect is currently unable to send power duration and power target to your device. You can still send the workout to your device, but we will change power durations to 'Press Lap Button' and power targets to 'No Target.' Do you want to send the workout anyway?
I'm wanting to target pace over distances so I'm not sure what it's saying about power duration and target. Am I missing something? Has anyone had issues uploading workouts?