I would share with you just a thought. Today I was in pg (mobious pve) and have noticed the following: The only thing that I think is actually broken in solo, regards the rescan time. I say this, because I have noticed that having different sets of active relic pillars stand, might enlight different obelisks.
This brings me into thinking, if correct, that we should just try to active the pillars in a particular order. I came to the former conclusion, since I first entered in the pg with no pillar risen, and the usual obelisks were shining, to, then, activate three (all excluded the F neighbour) pillars. Then, an unusual Obelisk set on, the C 44. I scanned it with no success, so I rebooted from main menu. I noticed that, when I relogged, the pillars I activated were all "off" and so also the unusual obelisk I was facing was. I have, also, parked my ASP-X near the nearest Pillar to C cluster, almost touching it.
This would mean that the most probably, the only thing broken in solo regards the possibility to re-scan the obelisks, so the reset time, instead the other mechanic which might work as intended.