Lua- Orokin Principle Rooms

[Cortanis]

I've been playing Lua for the last couple of hours trying to get the principle challenges done for the Pluto- Sedna Junction requirement done. Problem is that I've only encountered the Cunning Test and that's been only once. No other rooms have even spawned and I've distinctly been searching over the entire area as Ivara stealthed. Nothing... no other rooms are spawning. Can't get Mirage at this point.

[Harbinger-Ace]

The tile generation is random; it seems that you are simply unlucky.

You'll have to keep playing missions to get more rooms to spawn. Fortunately, the node Copernicus is a Capture mission, which should go fast, granted your weapons are powerful.