I'm having trouble uploading routes to my Edge 810 on a Mac Studio running Sonoma OS. The upload either takes forever, or doesn't happen at all and locks up my apps so I have to force quit everything. My 810 mounts, but then I get a message reading I disconnected the unit incorrectly. My 810 then have the computer logo on the 810 screen - not mount to my desktop - and have to just disconnect manually irregardless of the connection status.
All works fine on my older Mac running High Sierra OS.
Did Garmin not update Edge software to allow it to connect to newer Mac OS systems?