Workouts from Calendar no longer Sync to Garmin Fenix 6x Pro Solar

I have Garmin Fenix 6x Pro Solar and have used the Calendar extensively for Strength, Running, and Cycling workouts.  I just recently noticed that the items on my Garmin calendar are no longer syncing to the watch.  If I select Training Calendar on the watch from the activity, the screen just says, "Download your training calendar from Garmin Connect".  That isn't very helpful because there appears to not be any way to do that anymore!  This is so frustrating. I'm wasting HOURS trying to get this working. I have removed the device from my phone and re-added it (doesn't work).  I have plugged the watch into my computer and synced with Garmin Express (still doesn't work). I have changed a workout on my calendar and tried to re-sync (still doesn't work).  

Is something broken?  What gives?

Running version 16.70

Tried updating to version 17.75 beta but issue still occurs.