Hi Corentin,
this changeset has created errors in the OSM database regarding overlapping ways:

https://tools.geofabrik.de/osmi/?view=routing&lon=2.04904&lat=44.93153&zoom=13&baselayer=Geofabrik%20Standard&overlays=duplicated_edges

As you may know, this kind of error irritates routing software and looks ugly on the maps. Can you please fix this?

You may also like to educate yourself about how to edit hiking routes properly:

https://wiki.openstreetmap.org/wiki/Walking_Routes

Kind regards
Guido