By the way, not getting stuff to work, only to find they're not plugged in? I do that all the time.
Unless it's the electrical wiring in the house I'm working with. Then it's often plugged in when I thought it wasn't. I usually notice the moment I touch the cords though... 🙂
Ah, we are brothers then! 🙂 I've learned, on house wiring, to never, ever take the word of what's written on the breaker box as to which room is which breaker. I remember turning off all power to the bedroom, then pulling the wires to put up a ceiling fan. I looked at them, and thought well, just to be sure I better check. Put a meter on them and they were still hot. I had to wind up turning off the breaker for a room on the other end of the house to turn them off! 😉
Given the performance of my PM, and the performance of yours and the one in the dealer, I'm perplexed! And not even releasing even when you turned the phone off, wow. There goes my idea that the source device wasn't releasing, besides, it should be a case of the PM sensing no input.
I also can't imagine why, if it was a PM version issue, Mk 1 would do it and MK 2 wouldn't, that doesn't even make sense from a design standpoint unless they did something odd and messed something up. Have you updated the PM to the latest firmware? I did mine a couple of weeks ago when trying to diagnose my dropout issue, which was entirely related to something else not the PM. I have no idea if a firmware update will help, but it's the go to answer when you have no idea why something doesn't work, at least that's what every help desk does...😕