Yeah, that's what I understood from the previous post.I don't have Odyssey, so this shouldn't effect me. I would have tried to dock there, just to see if there is a docking maneuver at all there - but it would have taken me like 30 minutes to snail down to the settlement in normal space. It behaved like a non-landable planet "too close, dropping from SC" kind of thing on approach.
But I still think it may be a bleedover - a planet that is landable in Odyssey got added to the mission locations pool in Horizons client.
Because I think though the two clients "technically" run on separate server instances, they may as well share the transaction servers.