>>150983589
>>150983316
NTA
You're misunderstanding how The Solver works. Cyn IS The Solver, as in the Solver is using the combined bodies of Cyn (drone) and Tessa.
ALL SOLVER HOSTS grow eldritch flesh and blood inside them, and their AI Core becomes a little biomechanical crab-heart with a color coded Singularity inside.
All Solver Hosts grow a boney ribcagenin their chests around their Solver-corrupted AI Core. But from everything we see from Solver Hosts gettong torn apart they don't start growing actual full skeletons inside them.

I'm not sure why you're reaching so hard for these alternative explainations when we literally know that the Solver assimilates stuff, and we see what the Solver does throughout the show. You can also blatantly tell that it's Tessa's skeletal parts in the goop of Cynwalker's melted body. Even before that you can see Tessa's bones were in the Cynwalker fusion with how the hands move and bones crack, and in Liam's official art you can see Tessa's bones in places. I just struggle to see why you're insistent on Cynwalker "just" being Tessa's flayed skin being worn by Cyn - but your post gives me the impression you think Cyn is an insane drone "Using" the Solver and wearing Tessa as a suit.