Joystick is on a shelf not connected at all during this testing, just FYI.
Opened it up took everything apart.
Did not see any signs of anything mentioned above such as cracking cables etc. The wires were very flexible in mine so I think later models did get some new wiring.
While testing moved throttle and watched the ghosting happen in Logitech software... sometimes so bad all the switches towards front would glow.
Found the harness inside right throttle assembly was twisted on itself about 6 times to shorten it... thinking maybe it was too tight...untwisted and put it back together. Nope still ghosting.
Started removing items from the unit one at a time. Left throttle. Still happened, both RTRY3 and RTRY4, still happened.
I stand corrected that there is some type of USB issue here.
I did all this testing on a USB3.0 powered hub going to MB connector.
Tried EVERY damn port on MB.
I know this was mentioned above but I honestly did not buy into this as a fix.... connecting the throttle straight to one of the mb headers that runs to front of case.... NO GHOSTING whatsoever. WTH. NONE.
I moved the throttle like a mad man nothin, no ghosting.
I suggest trying your unit straight to one of those USB headers. I tried both USB3.0, and both USB 2.0 on front of case. ALL WORKED no ghosting.
Thinking too good to be true I put Joystick on USB3.0 hub. All working no ghosting.
@Mower "Damn Straight."