Returned to Eos - Forward Stations Gone?

I've been playing a bit, decided to return to Eos after placing an outpost on it, and having been to a few new worlds. I wandered around the Eos outpost for a few minutes, then I went to explore the rest of the planet again - and noticed all my forward stations, and thus my ability to bring in the Nomad, were gone. Anyone else experienced this? Is there some glaringly obvious thing I am missing here?

EDIT - For anyone else who experiences this, or other things missing (one thing I saw was a monolith that had disappeared, resulting in floating walls and such): Saving, then loading that save, did it for me.