Today I was trying the course creator option in the GC app. I selected the 'Road bike' option, but the resulting route went over grass paths. Not sure if this course creator is using Popularity Routing, but if it is doing so, something is wrong in the implementation obviously. In any case, even with Popularity Routing it should not make this kind of routes. In OSM, the surface was not marked as 'grass' yet, but it was labeled as a pedestrian path. In that case, it should not have been used for 'Road bike' routing.
How are your experiences with the Course creator in the GC app?
An example of the path it was using can be seen in the screenshot below (course: https://connect.garmin.com/modern/course/19747388 ). I noticed the same issue when using the GC website Coarse Creator. The grass path is at the 9km marker.
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