In a tag combination

area:highway=service
area=yes
highway=service

the "area" tag and the "highway=service" are superfluous. I forgot to delete the redundant area tag in my changeset. The "highway=service" is already explicitly mapped as additional way in between of this area, therefore the OSMI routing validator detects unconnected nodes.

As I see that you reverted my change again, I ask you to revert back to my version and additionally remove the area tag as otherwise the error will appear again in about 12 hours on https://tools.geofabrik.de/osmi/?view=routing&lon=-99.48934&lat=38.77357&zoom=8&baselayer=Geofabrik%20Standard&overlays=unconnected_open_ends_1