But isn't this part of the Hover segment? why does it get reset by the Network Unknowns?
Yes, that's why it's fixed in 2.5. Lift+Cruise has 2 throttles, and thus it needs to be managed by the network.
Also I am wondering if there's a place where the throttle gets calculated? I have noticed that the throttle keeps changing at every iteration. Would it be the same for the other configurations as well? or does it depend on some other factors? or the set up of the vehicle?
In one sentence: the throttle is a control variable and needs to be numerically solved.