I upgraded my G2 charts to the latest 2019 charts (which are now called G3 charts) this past spring, and since, they do NOT work in Homeport which of course we use for waypoint and route planning. I get a blanked out space where the chart chip covers (VUS511L which covers Boston to Norfolk). And I have no data at all basically for the fishing charts. I now get 4 drop down charts to choose from, but they all look just like the basic "World Map" that comes free with Homeport.
They also do NOT work properly in my GPSMap 7215 chart plotter. I get no bathymetric data on the fishing charts.