Strava Routes not appearing on Edge 840 after sync

Hi,

newest frimware on my 840, sync of Strava routes as well as Komoot has been working fine since purchase.

Now:

new routes not appearing on the device. Routes appearing on the phone app as well as on the connect website. Stared and unstared several routes as well as de-activated and activated strava connection several times. Syncing the 840 with my phone runs through smootly without failure messages. Also I am verry well below the 100 courses limit. 

Still - none of the above brings the device to display the newly added courses. 

Any ideas to takle this??

Thanks!