I have solved my problem. I started at the jumper and traced the circuit to see why I wasn't getting power to the second row and saw a tiny little nick in a trace on the edge of one of the holes. It was just a little bump, but it broke the trace completely. Little shiny copper exposed that wasn't connected anymore.
It was right here...
So I got a little piece of magnet wire, scraped the trace to give me a little more copper surface, and created a little bypass jumper.
Now it would seem that I am back on track. Power to the second row and tubes are lit once again. Whew. I feel a lot better now.
Cheers,
Ed