I've read through this post relating to the issue from February and the workaround didn't resolve my issue. I got home to push a running workout to my 920XT. I thought I was just being impatient, but I wasn't. I rebooted watch and phone. Disabled Bluetooth and re-enabled. Remove the 920 from my Bluetooth connections on my phone and then re-paired. I was prompted for a firmware upgrade and updated the watch to 9.70 and still couldn't get anything to push to my watch. I tried pushing it through Garmin Connect Mobile and through Garmin Express. I tried seeing if there was another update by connecting my watch to wifi and nothing.
The transfer keeps failing. I have to go into Garmin Connect on the web and remove the pending update (Device and Sync Status). Once I remove the pending install, Garmin Express will sync without issue, but if I try sending a single workout or the calendar, the transfer fails. Any help would be appreciated since I really use this device a ton.
Versions:
Garmin Express: 6.2.0.0
920XT: 9.7
Garmin Connect Mobile: 4.4.0.19