There are three map layers I see: land use, bicycling and “hiking”. Land use works. I can turn it on and off. However, the other two do not work at all. If I check one or the other, the map does not change at all.
These layers should still be working okay, but may not be available everywhere (depends on data available in the OSM project). The Cycling layer shows highlights for officially recognized cycling networks, while the Hiking layer simply shows hiking trails from a more zoomed out view. They also emphasize related POI such as view points and cycle shops. See the attached screenshots for an example taken from Switzerland.
They used to work for me as well. However they no longer do. I use my home city as an example. When I put in bike layers in the past there were several to see. Now, there are none. Is there some way to fix this?