@amandus - Presumably there’s a 4th fairly common root cause: a point wasn’t routable, an OSM user added / corrected some ways, but the ORS graphs don’t yet include the new ways. I’m getting the same error using the QGIS ORS Plugin for a point where I added a way to OSM a couple days ago.
Is there URL or API endpoint where graph build status is published? You mention /v2/health in another post, but I’m not sure how to hit that end point. It’s not referenced here:
https://openrouteservice.org/dev/#/api-docs/introduction
Thanks in advance for the advice. Note: the way in question is highway=service.