I'm evaluation V1.4.3 and found something odd. This happened the first time when I had no charts yet, as well as with the last update. I have my screen showing The Netherlands and all looks OK. When using the chart manager to get a new version of the charts, all water around Flevoland (essentially the entire Markermeer and IJsselmeer) disappear from the map and show as land surface. Restarting SkyDemon fixes the problem. Trying to recreate when the maps are already up to date does not show this issue.