I order to resume syncing with garmin you have to logout/login again.
I normally dont have autosync with garmin because i often forget to stop my watch when i am finished and then have a trail of busses/trains/bycyles that i want to remove before syncing.
Ugh, that messaging needs to be fixed … There’s a whole mess around un-pausing some services, and the text is created generically for all services. You do not need to log out/in for Garmin. Sorry for the confusion there.