Having asked the same question to Garmin Support 2 weeks ago without any response, I'm hoping someone on the forum can help me with below.
On a consistent basis I'm unable to send Courses marked as "Road Cycling" to my Edge 830 through the Garmin Connect (Android) App. When I open the course in the App and go to 'Send to Device', the Edge 830 is shown as "NOT COMPATIBLE". When I open the same course through a web browser and click 'Send to Device', the Edge 830 is shown, I can select Edge 830 and 'Send Now' works fine. The downside is that I have to go to the website every time and then ensure I sync, instead of just being able to send it directly from the app.
Thank you for any help to resolve this issue,
-Joost