OK, I've done quick scans of threads, Google searches, all that. I've got a weird issue. For a moment, when Mechjeb loads on the landing pad I can see "Landing Autopilot", but as soon as I have control of the ship, it vanishes. I have a fully upgraded KSC, and the entire tech tree filled out. It's only recently, and I'm not sure which Mod might do that. I even tried editing the tech tree entry in the MechJeb folder to make it so that landing assist was available earlier, but still get the same thing? Suggestions?