The new core patch removes repair / tether / fitting. You did not change the Show Info Services tab. A fort still reports it has Repair and Fitting on the services tab despite not having it.
The only way to find this out is to warp to a structure and click on it, to see the “Core Absent” message. There is no way to pre-plan a flight route.
The services tab already changes based on what services are available to you, cores should not change this. The Show Info should not just lie to players.