Traxxas 2.4G Dead?

[rawfuls]

Have you tried the MMM in place of the MMP, and has it done the same thing?
(Re-reading OP, looks like you have).
Are you sure it's the right channel for both?

Definitely not recommended, but I've *accidentally* plugged my servo into my motor slot, pulled the trigger, and it moves the servo perfectly.
Might be a shot you might want to take, same goes with motor in servo.

If you've tried the RX in different equipment, and it still twitches, does sound like a radio issue.

However... have you tried wiping the firmware of the ESC? As in restore it to factory defaults via CastleLink..

This happened to me once on my MM and Medusa, can't fondly remember the solution, but I do know I tried the CastleLink thing, it may/may not have fixed it..

worth a try!