The Montebra GHCMQ-3 clearly wasn't ready for primetime.
The mech appeared to be well-designed and polished from the outside, but now that it had completed an incredibly intensive charge attack, it had exposed a lot of flaws and shortcomings.
Whatever electromagnetic wizardry enabled it to form an unbreakable lock onto a target mech, the extreme measure clearly hadn't been designed for a mech of this caliber!
The fried components, the obvious reduction in fluency, the shaking limbs and many other indicators showed that the two Montebras had paid a heavy price to deliver their most powerful killing blows at their targets.
It worked, more or less.
Though one of the Fey Fiannas managed to blunt the force of the incoming lance by making use of the sum total of all of the modular armor plating attached to all of the fey, the powerful electromagnetic pull had been at its strongest when the distance between the two mechs had shrunk.