Hello,
I was looking on the map for the portal to jump to a different system. I flew to the area indicated, but did not see anything to fly into. Are they small or difficult to find? Thanks!
They are huge metal constructions that look like this:
(https://atomictorch.com/Images/Upload/99.jpg?maxwidth=600)
I think it was a bug of some sort... No other explanation in my mind. Try to restart the game and see, if problem persists.