different elevation for the exact same point

[TheGreatRefrigerator]

Here's what I did

https://api.openrouteservice.org/v2/directions/driving-car/geojson

body:

{"coordinates":[[8.681495,49.41461],[8.696507,49.41943],[8.697872,49.450318]],"elevation":"true","extra_info":["steepness","suitability","surface","waycategory","waytype","roadaccessrestrictions"],"instructions":"false"}

---

Here's what I got

After visiting a Waypoint, the route returns on the exact same path but with different elevation information. Part of the coordinate section:

                    [8.698479, 49.418991, 291],
                    [8.698079, 49.419188, 285.5],
                    [8.697857, 49.419346, 281.3],
                    [8.697655, 49.419543, 277.2],
                    [8.697592, 49.419596, 275.2],
                    [8.697579, 49.419621, 273.2],
                    [8.697579, 49.419621, 271.3],
                    [8.697579, 49.419621, 254],
                    [8.697592, 49.419596, 254],
                    [8.697655, 49.419543, 254],
                    [8.697857, 49.419346, 254],
                    [8.698079, 49.419188, 254],
                    [8.698479, 49.418991, 258],
                    [8.699224, 49.418674, 267.6],

8.697592, 49.419596 is the turning point which is present 3 times with 3 different elevation values.

---

Here's what I was expecting

The same elevation for the same points

[aoles]

Probably virtual nodes/edges are the thing to look into.

[TheGreatRefrigerator]

This has definitely to do with the waypoints. I was just generating a route with multiple waypoints and this issue appeared a lot more frequently.

[pathmapper]

This has definitely to do with the waypoints.

Reported a similar issue in #770, but there are no waypoints involved, only two points and the inverted order of the points returns different elevation for both points.