So, I got a PEx, and for a short period of time, I can get it to power the 3rd dye on my RGB led. I can confirm the LED works, and that the NBv4 is sending 3.3v to the pex signal pad, but for some reason, after a few minutes, the PEX voltage degrades to 2ish volts, which can't turn on a blue LED. Anyone with some insight as to what could be the cause of this behavior?