This thing was making some weird noises. I wasn’t sure what it could be so time to open it up.

Checked the switches first and they were fine. A bit dirty but fine. They were cleaned either way. I opened one of the pickups and this is what I found. One wire completely cut, another almost there and also one of the pickup height adjustment screws was broken.

Broken screw soldered to the back of the pickup mounting plate:

The ground wire to the bridge was actually wired to the pickup mounting plate of the bridge pickup. I put it back where it should have been.