Identify where planned workout from TrainingPeaks comes from

In my calendar in intervals.icu I get mysterious planned workouts from TrainingPeaks, but I don’t know how they come to intervals.icu. These planned workouts are not real. They seem to reflect my actual activities that are synced to Training Peaks just as activities.

I have intervals.icu connected to Garmin, Strava and Zwift. I cannot see how these fake planned workouts are created.

I just found out that this comes from the Training Peaks calendar. It would be nice if this would reflect only real planned workouts, not logged activities.

Hmm.. interesting. There’s no direct connection (and even indirect) from TP to Intervals or vice versa.

I know one can push workouts from Intervals.icu → TP but only thru some 3rd party app/connections but not natively.