Basecamp did not recognize GPSMAP 64s

Since the Basecamp update to 4.8.4 and GPSMAP 64s update to Firmware 5.3, Basecamp did  not show the GPSMAP 64 s anymore .

The device could be found in the finder Favorites as Garmin and also the SD-card.

But in Basecamp this devices are not seen.

VMware Windows recognizes the devices too and the Tourexplorer also recognizes the devices.

So it must be a Problem with BAsecamp for MAC.

IS There anyone who could assist me to solve the Problem. I need a solution earliest on 10 of July To transfer a travelplanning to the device.

Kind ergards

Willi