I just downloaded Marble from PortableApps.com. Everything works fine except that the OpenStreetMap theme is a featureless globe with no data other than latitude and longitude lines. Is there something I must do, to get the map data? Reproducible: Always Steps to Reproduce: 1. Open the program. 2. Click OpenStreetMap. Actual Results: A bluish, featureless globe image with latitude and longitude lines, and a few labels. No roads. No continents. Expected Results: Roads and maybe political divisions on a base map that differentiates between continents and oceans.
Never heard of PortableApps. It is not associated with KDE nor supported. That said, can you give our Windows installer from https://marble.kde.org/install.php a try? Please re-open this bug if the issue comes up with that version also.