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

https://tools.geofabrik.de/osmi/?view=routing&lon=36.61146&lat=-1.24212&zoom=11&baselayer=Geofabrik%20Standard&overlays=duplicated_edges%2Cduplicated_edges%2Cduplicated_edges_areas

https://overpass-api.de/achavi/?changeset=133558756

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

Can you please fix this?

Btw. what about editing "real" routes instead of something that could be a bus route? May be you like to educate yourself about how to edit bus routes properly?

https://wiki.openstreetmap.org/wiki/Relation#Bus_route

Kind regards
Guido