Hi,
I know it's a known issue but really it needs to be urgently sorted. When you do a run which is a Garmin coach workout it sometimes doesn't sync. I did the benchmark run it didn't sync okay nevermind I did it again another day and it worked fine. I then did my first run which was a 50 minute run and it came up on my watch as my workout for the day and I selected it on the screen that pops up as you select running.
The session has now vanished from the coach plan which is annoying as well although I guess I don't have to do it anymore. But why can I sync runs whether they were part of the coach plan or not to the coach data. If I can sync runs from Garmin to runna it shouldn't be too difficult for Garmin to sync with Garmin in the same app.