Same issue for me - can't get the calendar to sync at all from the app, but if I send it from the website, and then sync hard-wired from Garmin Express, it will work. Really frustrating as I update my calendar frequently, and having to hard-wire sync is painful, when it should work through bluetooth. I've tweeted Garmin about it a couple of times, but my requests for help have been ignored. Would be really helpful to get an update from Garmin on whether they're aware of the issue, and what's happening to get it resolved.
FR235, Samsung S8
Thanks for the update Nitz. I also put in a ticket into support and haven't received a response, so this is good to hear.
had same issue (neither iphone app nor macbook app did the calendar sync) and I figured out a trick. i opened Garmin Connect via Browser and moved the workout by one day. it asked me if i want only this particular one or the whole training. I chose the whole training. than synced via the garmin app on my macbook and it works. I have again my trainings. In my case i missed a training so shifting is ok. in case you don't want to shift. try the following:
1. shift 1 day (drag n drop via garmin connect in web browser)
2. sync
3. shift back (drag n drop via garmin connect in web browser)
4. sync
Arek
I had three training plans on my Garmin Connect calendar (one completed, one current, and one scheduled); I deleted the completed training plan and my calendar started syncing again with my Forerunner 920XT.