The first degree may be large as well as the mask can happen to cover the entire map, which makes it difficult to start to see the area that is unmasked. To look at area which will be installed, zoom in unless you is able to see the area that is unmasked.
By standard, the installed map area uses the level that is highest of information supported by the basemap. If you do not require that degree of detail, give consideration to selecting a coarser degree. This will make the down load faster and makes use of less room on your own unit.
If you wish to install a larger area than is shown unmasked, modification amount of information to decrease what lengths you’ll zoom in with no back ground becoming pixelated, which advances the online (unmasked) area.