I am using beads on the power inputs.
As per your advice I ordered a different batch of TLO74's so I'm going to try that and see if that does the trick.
I am currently using the 100k resistor and 100 k pot without the switch and wired as per the schematic on the website. Would I need to reduce the value of the pots or the resistors since they are driving 3 Seq Switches at the same time?