Can no longer export courses to watch

Hi. My Garmin 920 XT has always worked fine.

However, seemingly after this beta update I am no longer able to export courses from garmin connect into my watch, despite all my best efforts, whether via the web, garmin express or the android garmin app ("send to device").

The apps sync, but the new courses just will not show up, and only courses I had uploaded previously are available on the watch, although the new ones are visible on the app and online.

Help