Cobalt drive - Gain pot not working

[zeropluszero]

I built a cobalt drive.

The 250K dual pot was purchased from pedalpcb, and has some weird behavior.
I'm aware of the J201 biasing issue with this pedal, I'm hoping for some other info before i get to that.
So far, the build is stock. I had played around with R6 for biasing, but have put it back to a 4.7K resistor while I look at the main issue.
Measuring the dual pot in the circuit, if I measure between 3 and 1 pins without power, I get 0 ohm and 250K, on both 3 and 1 pins.
if I connect power, the inner pins drop to about 3.9k ohm when fully clockwise.
I can then lower this back down to 0 by going anticlockwise.

if I play guitar, i get signal between about 7 oclock and 10oclock, after this it gets gated and then splutters out.
after a few minutes the range of 10oclock drops to 9 and 8 and eventually stops passing signal, almost like something was getting overheated or damaged and eventually cuts out.
I've reflowed all solder joints, and I will take some photos of the pcb and resistors tomorrow morning in the light.
Any ideas?
I don't have a spare single opamp unfortunately

 

[zeropluszero]

Dammit I already see it...the measurements of the inner I thought I was taking were the blue inner and white outer. I'll try again tomorrow

 

[zeropluszero]

soldered in some new measurement wires, the blue outer wires seem to work fine, 0 to 250K ohm
the inner ones measure 0 and at about 9 oclock drop into overload.





so I'm guessing the pot is busted.