Please try to not reveal too much spoilers if possible
I have awakened 3 planets so far - Novus, Sylva and Calidor (in that order) and visited the Satellite, working now on filling it with the Geometric Triptychs.
After Novus and Sylva I went for Desolo but there was something wrong. I powered the Gateway Chamber on the surface but there were no pillars leading to the Engine. Just the outer shell and the inner sphere. I build a bridge to it but the consoles that should show required material for the Geometric Triptych didn't display anything.
So, I left Desolo for later and went to Calidor. I powered the Chamber on the surface and head down to the Engine. The pillars were there I made it to the engine, I took note of the material required, get back to the base on the surface and saved and quit.
The next day I prepared the material for the Engine and went down there.
And I hit the same issue as on Desolo. The pillars leading to the Engine disappeared. The tethers that I placed the day before where firmly attached to thin air. I jumped down anyway and survived thanks to weird gravity in the center. Now the consoles again display nothing but did accept the resource they should, so I was able to awaken Calidor and teleport out of there.
My question is what's up with the pillars? I tried to google for it but no one seems to mention they can disappear or my google-fu is failing me. Am I missing something? Do they appear/disappear as a response to something or is it a bug? I play on xbox if it matters.