Thank you for spotting this anomaly, and taking action to remedy ; Graphopper and OSRM now route correctly, Valhalla doesn't yet : https://www.openstreetmap.org/directions?engine=fossgis_valhalla_bicycle&route=51.15152%2C4.69701%3B51.15160%2C4.69122 and https://www.openstreetmap.org/directions?engine=fossgis_valhalla_bicycle&route=51.15059%2C4.69717%3B51.15075%2C4.69251 and https://www.openstreetmap.org/directions?engine=fossgis_valhalla_bicycle&route=51.15099%2C4.69599%3B51.15134%2C4.69555 

Some further edit Sat 15 Apr'23 9am