Whats the sentient lost light up to during the mutiny arc? :)
It starts with Getaway learning long before the rest of the crew that the Lost Light is alive. He doesn’t spill the truth immediately, though; no, he has a better plan. The ship is being exclusive only to Rodimus, Magnus, and Megatron, the former two he believes are being too sympathetic to the latter. He could use this, his new knowledge of the ship, to get it to do what he wants. When Team Rodimus go down to Necroworld, Getaway enters the bridge and speaks to the Lost Light directly. He reveals that he knows they’re alive, and he declares himself captain to them; and that he’s in charge of what they do now.
Now, the thing about LL is that they follow a rule of no bias; so while they don’t understand why Getaway is doing this, when Rodimus is the captain, but they don’t refuse letting him into the captain’s chair and handling the controls. And in this moment, they’re not mortified that he knows, they’re merely bewildered. How did he come to know? (He might’ve smooth-talked Lightlost into saying things that aren’t like any of the crew, and also taking their physical appearance not as a costume/coincidence but as deliberate… and/or he would’ve seen their holoform dissipate.)
LL is saddened as they listen to Getaway use their comm to announce the mutiny to Rodimus, and is hurt even more when they hear how confused and angry Rodimus is. But they don’t do anything, because it’s not their place to. The mutineers, even Getaway himself, still mean so much to them, and they’ve watched over them all the same. They just never would’ve fathomed that the crew they care about so much would turn on one another. When Getaway leaves Necroworld, leaving Rodimus's group behind, LL silently wishes for their safe return sooner than later.
This would be the beginning of LL's little mini-arc where they begin to question their neutrality, a question that's amplified further once Getaway releases Sunder, who promptly begins cannibalizing the crew as part of a bargain to have the crew's memories altered. LL is horrified, and for the first time, appears as Lightlost and confronts Getaway directly. Getaway gives the ship one more chance to back down and stay subservient, but when LL makes it clear that they're now actively opposed, he has no other choice. So he summons Sunder. Sunder, who knows the Lost Light is alive.
Unfortunately for the titan, the mnemosurgeon doesn't need their giant optics to tap into their mind. Through Lightlost, he's already looking at them; and so he strikes. With the flash of his optics, the floor beneath him trembles, and with a choked gasp, Lightlost abruptly disintegrates in a field of distorted light. The overhead lights flicker, and then there's silence. In mere seconds, the titan's conscience had been shut down, their frame now indistinguishable from an inanimate vessel. And Getaway continues with his business as normal.
The Lost Light would remain in their unconscious state until Rodimus and his team finally reclaim the ship. The first thing the titan sees, and feels, upon awakening, is the familiar frame and face of their true captain.
