Glad you got it sorted out. Still not sure you have the pickups wired quite right (assuming they are Duncans) but someone else can take a close look.
I like to use a piece of 18 or 20 gauge buss wire to connect the pot cases rather than individual wires. It doesn't work any better than the individual wires that you used, but it's a bit neater and easier because you don't have to worry about the insulation at all. You just run one, continuous piece and form it so it's out of the way.
Attached photo just to show example of the buss wire.
View attachment 93160