1. Logging in connect.garmin.com (MacOS High Sierra 10.13.6, Safari 12.1.1)
2. Selecting Training Plan 5K run Level 1 based on heart rate and select Schedule on the current date
3. The training plan appears on Garmin Calendar
4. Connecting Fenix 2 watch (software v4.50) over USB to my Mac and launching Garmin Express (v6.14.1.0)
5. The training plan syncs to the watch
6. Safely disconnecting the watch. It reboots and shows progress of new workouts import: 1-14/14 which is already strange because the number of workouts in the plan is 36. I read somewhere though only 1 month is synced over to a watch so maybe it is ok
7. Going to Workouts>Calendar on the watch and see incorrect workouts on given dates. I.e. for tomorrow W04D7 workout displayed (from week 4) instead of W01D2, Saturday's workout W04D7 again, as well as 12 remaining are all the same W04D7.
Troubleshooting steps taken:
1. Reset watch, deleted history
2. Deleted and re-synced the training plans dozens of times
3. Deleted manually all entries under Workout>My workouts on the watch
4. Cleared Safari browser cache and cookies
5. Tried Firefox and Chrome browsers instead of Safari