Seems to me like it's the firmware. Prior to the 5.10 update, the maps were present on the device and able to be enabled/disabled. After the upgrade the maps were still there, able to be seen in Windows explorer and MapInstaller, but no longer listed in device's menu. However they were in the enabled state, and that was fine with me.
I called tech suppt - their suggestion was to uninstall/reinstall the maps, but I didn't want to create a bigger problem, so I stood pat.
I also raised the issue of terminated BaseCamp development - the tech denied that, and said they were currently working on bug fixes, including the ability to load 3rd party maps - which he said also affected some Garmin map products. It'll be interesting to see what the next version of Basecamp offers.
I called tech suppt - their suggestion was to uninstall/reinstall the maps, but I didn't want to create a bigger problem, so I stood pat.
I also raised the issue of terminated BaseCamp development - the tech denied that, and said they were currently working on bug fixes, including the ability to load 3rd party maps - which he said also affected some Garmin map products. It'll be interesting to see what the next version of Basecamp offers.