[Coldsaturn]

What makes me think that Caleb faked the whole memory-wipe out is that very same sentence from the end of the last chapter "we can't access the chip's records of Caleb's memories."
Which can be read to mean that the chip can't complete its process because how can it wipe out memories it can't access? That part of his brain is sealed off, out of the chip's control. If the chip could get in there and delete his memories, then the seal would be no more.
It could also mean (if I stretch how I can read the sentence) that it does in fact wipe out his memories but then he blocks their transfer/access to Lucius, but if he lost his memories how would he actually know he needed to do that? He'd have to retrain himself every single time on his objectives. And following what he says of his plans during Kahli, he can't risk missing a step. Losing all his memories on a semi-regular basis would be extremely dangerous, too many unknown variables I fear.

MC actually losing her memories and having to recover them gradually could be perfectly explained by the fact that she doesn't have a black hole in her brain protecting her from the chip's effect.

- That galaxy eye has been theorized to hell and back in the fandom. It could be something/someone we already know, it could be something that is explained or introduced later by infold.
As of now I think the only LI who is known to have an aether core (fragment) in him is Sylus.