I don’t think it’s just you. If completed activities are still syncing but planned workouts aren’t, that sounds more like the workout push to Garmin is having an issue rather than the Garmin connection itself.
A couple of things I’d try if you haven’t already:
Force a sync in Garmin Connect and then reopen the app.
Check whether the workout appears on the Garmin Connect web calendar instead of just the mobile app.
Disconnect and reconnect Garmin again, then create a brand-new test workout rather than moving an existing one.
If none of that helps, it may be worth waiting to see if others are reporting the same thing. Sometimes Garmin changes something on their end, and these sync issues get resolved once the integration is updated.
Hopefully it’s a temporary issue and gets sorted out soon.
For legacy reasons that are hard to fix, Intervals.icu uses two Garmin Developer apps, one for activities and wellness and another for uploading planned workouts. So it is possible for one to work and not the other.
@Marilou_Dumont I checked the logs and your stuff is uploading without errors, both before and after you re-connected. So I am not sure why you aren’t seeing anything on GC.