Interval splits are not visible in Garmin Connect.
https://connect.garmin.com/modern/activity/1636300514
Warm-up
3x (8min interval/ 4min rest)
Cooldown
In watch everything works fine during training, only splits not visible in GC
I see different soft version f5 2,40 and f5 sapphire 2.0 right?
Have you tried setting this up as a workout? I do that for my run /walk training runs and it breaks down the split for each run and walk interval.
https://connect.garmin.com/modern/activity/1639410646