Just out of curiosity, is there a possibility that free-floating UP's are not in signal sources at all? Or at least not in Anomaly signal sources? Could they be in the cargo holds of pirate ships for example, or just free-floating above a planet or star outside of OC? I guess the reason I'm asking is that we seem to have made an implicit assumption that we're looking for USS to find free-floating UP's and I'm wondering if that's really the case.
They have repeated the "Convoy Pattern" from the UA (TL3) to the UP (TL4). It would therefore makes sense that they repeated the USS for the UP as well. I swear to god if they have put the UP in "Degraded Emission" or "Encoded Emission", heads need to roll!

If they haven't put them in USSs, how are we then supposed to find them? Just randomly drop out of SC anywhere and hope for the best? Keep doing that every 10LS on all directions? That gives even more options than searching all the systems for USSs. So you have 400 billion times infinite possibilities. We don't have enough commanders for that!
Like others have said, I am also nearing the end of my patience. It's a fun mystery, with spectograms, EMPs, pointing behaviour, etc etc. But due to the lack of progress, theories are presented that require you to have a PhD in advanced sound analysis. We are missing some essential parts to the mystery, and all the hints in the world from MB won't help. They just make it worse, because the only place they appear as "helpful hints" are in MB's head. For me atleast, they just add lots of ink to already muddy waters.
For the Free Floating UPs, they are so well hidden that we are searching at random. In a galaxy with 400 billion systems! Again, their "logical location" is currently only logical in MB's head. We have no known information in-game that would help us find these, which there should be. It shouldn't be random, especially when we know that the UAs form a shell, but with the amount of searches out there, they are. And if someone says that the spectogram shows a map of the UP locations, I will demand a shrubbery!!
Sorry for the rant, but like I said earlier I believe this is the current situation:
[UP mystery here] -----------------------------------------------------------------------------------------------------------> [current position of theories]
So, I'm taking a slight pause from the UP search and whatnot, and will do some lowkey trading or something. I'll still try to keep up with your efforts, and update the spreadsheet for the UP Convoys if some are found, but I won't be active in the endeavour for a bit. Good luck to those still actively at it. Hope you solve it before I can say "Ekke Ekke Ekke Ekke Ptang Zoo Boing!"
PS: All the above is void if something interesting comes out of Gamescon
