Using a Garmin 970 with 12.72.
Ten weeks into a Garmin Coach Triathlon plan.
Completed scheduled activities are not being marked as completed, the day shows as a "rest day". I've uploaded the completed activity showing on my watch, and then three Garmin Connect mobile app views of the coach plan using the secure file upload page. (Note that the week doesn't even show the current day, it just goes from Monday straight to Wednesday). I've also uploaded a screenshot of the Garmin Connect Web interface to show that it's not correct there also - so not a caching issue)
This hasn't been a problem before - but I can't specifically be sure of when it started to become a problem. I had to pause the plan for two weeks due to an injury.
Thanks