SD card route to main unit - Garmin 790

Advice please. I have some routes on Base camp. I have added to the SD card in the unit. Base camp shows them as down loaded. But cant access them on the unit a Garmin 790. Go into routes in the unit, no option to select source. Just shows no routes on unit. If I download straight to the unit they show up in the app and can select. So question is. How do I get the routes from the SD card to the unit. Thanks

Bump. Any one help

I think they should be in the Garmin/GPX directory irrespective if it in internal or SD card storage.
Connect the unit to your PC and move (don't copy) one from the GPX directory in the unit to the same directory on the SD card.
Check if you can load it.-