Which browser are you using?
@boldtrn Something strange is happening here. After opening Kurviger in Firefox for the first time, the hill shading was more pronounced and copyright information was different to Chrome, although the same “OpenStreetMap” was selected (left: Firefox, right: Chrome):
After switching to another map style and then back to “OpenStreetMaps”, Firefox and Chrome have the same appearance:
Update:
das könnte die Ursache sein: