Hidden Achievement issues. Need help

[Drancon101]

Hey ya'lls. Im in a bit of a rut. I have completed all of astroneers achievements except the final one, which requires you to have all achievements unlocked.

My problem is that I have one last achievement left aside from the one I stated, but its a hidden achievement. What I can't get is that I been to all the planets, activated all the gateway engines, and completed the final bit that gives you the final cutscene. But I can't figure out what I have left, and it wont tell me what I need to fullfil it

Could anyone help me on this?

[Crashinbrn]

i will second this, i have all achievements as well. i have started going around opening all the capsules i see, i have over 280K bytes from research, and have purchased everything to make. i have made everything. I even put a shelter on every planet.

a hint as to what needs to be done would be nice

[Drancon101]

I found that my "secrets of the universe" achievement is bugged and thinks I haven't done it yet, even though I activated all the gateway engines and done the final cutscene twice