I believe this question was already answered, but I couldn’t found it.
I build my maps with Map Composer (latest version). Viewing these maps on a Garmin device is not the problem.
What happened… I connect my Garmin device to the PC and open then Basecamp. Then I selected the map from the Garmin device. What I see is a world map without coast lines and no sea.
I tried it with Australia and I used the planet file. When I zoom into the map, the details are all in.
When I download the AIO DACH map from “dev.openstreetmap.de/aoi/dach” and open them from the device in Basecamp, I can see the sea and the coast.
Can somebody explain to me what I’m doing wrong or which step I’m missing?
Thank you and greetings