[Lee-CI]

Originally Posted by RipNC

My friend Arch would say "it is always the ground". Double check the negative side of that circuit - most of my negatives terminate on a ground bus behind the panel (mine is screwed to the floor). Check those terminals.

^^^Good thought Rip.

There are instances where the high impedance from a VOM will trick one into thinking there is good voltage because it is designed not to put a load on a circuit under test. I'd suggest taking accurate impedance checks from one of the faulty lights back to a known good ground location on the ground wire side of the switch. Easily accomplished with a long jumper wire to extend the length of one of the multimeter leads.