Base Camp shows bird eye imagery but Montana 600 only showing on box of imagery

Hello Team 

I downloaded 4gb of bird eye imagery for the route in Base CAMP and copied it over to the device. When the device is connected to base camp I can see the bird eye imagery on the computer but when disconnected I do not see the imagery on the Montana 600 GPS device. I only see one small portion of the map. Any idea what could be causing this issue?