Interesting to note, how after returning through the portal, I ended up in another new system, different planet. For some reason I did not go back the way I came, hmm …
Edit:
Ok, I guess I will have to reload my backup, because something is not right! It shows the following in my Galaxy Map (Note, I renamed the system as a new discovery). I can see a list of things with the system that seems familiar, however, nothing discovered there, all brand new to me.
Then went ot the Space Station to check the Teleporter, to find the following:
Yay me! NOT!!! I wonder what galaxy I am in? Warped to another system and lo and behold
I have discovered a way to get back to Euclid I guess!
Not too happy about this though … all this time wasted unless I find a quick way back to Eissentam to continue my play there.
I fixed it with my save editor, so I did not waste any time.
See Bug Report and save editor solution here: