Hi Harvesterify,
this changeset has created a lot of errors regarding overlapping ways (blue markers):

https://tools.geofabrik.de/osmi/?view=routing&lon=2.40994&lat=48.62899&zoom=13&baselayer=Geofabrik%20Standard&overlays=duplicated_edges

https://overpass-api.de/achavi/?changeset=146913383

These errors are caused by a bug in osm-relatify, related to splitting roundabouts (which is btw. disputable).

Can you please fix this?
Kind regards
Guido 