When generating isochrones near Thames some edges are not properly included in the generated isochrone polygon. Initially i used the car profile and got the following result.
Then I thought that this is happening as the paths at the edges are foot paths so cars are not allowed. So i changed the profile to be “foot walking” but I still get the edges excluded (see here)
For comparison it seems the mapbox isochrone service is fairly good at that.
So it seems that nodes at the edges are excluded for some reason. Is there any kind of configuration that could fix that?