Arcadiator woes

[AntKnee]

I have an arcadiator that has an overactive LFO. Regardless of knob settings, with the lfo on, as a note trails off and fuzzes out, it seems to get stuck, almost like a stutter, and ticks rapidly. The LFO led blinks with the stutter. When it happens, if I adjust the trimpot, it will stop, but it occurs at any usable setting of the trimpot. I cant figure out how to make it happen. I tried switching the ICs and trimpot out, but no difference.

[AntKnee]

Update for voltages and info...

IC1
3.8, 4.3, 4.2, 2.6, 2.6, 8.9, 0, 9.4, 0, 0, 9.1, 9.4, 0, 9.4

IC2
9, 9.4, 0, 0, 0, 0, 0, 0, 0, 0, 0 , 0, 0, 9.4

IC3
0, 9.3, 9.3, 9.3, 9.3, 0, 0, 0, 0, 0, 0, 8.9, 5.8, 9.3

No substitutions, solder joints look good. Values look good. Since this picture was taken, I replaced the ribbon from stomp to pcb with separate wiring and insulated audio lines.  I have also replaced the trimpot with the more typical 3362.

Not sure if it helps, but thought id mention... I noticed that when I press on the two 1M resistors (the carbon film ones between IC 3 and 1), it has an affect on the problem. I dont know if it is from the pressure from being pushed, or from my finger shorting something.

Apologies for the dark photo.




Here's a better one of the current pcb.