Windows won’t go up when car is running

Begin by locating, removing, cleaning, and reinstalling your ground connections:

Battery Terminal
Block to chassis
Battery Negative to Body

Check and post voltages with the car off and key ON --and-- with car running. If you see 15+V with the car running, you have an alt or regulator issue.

Ignition switch is cheap and an easy swap. I'm talking about the switch and not the key tumbler.

Also: The convertible uses a window safety relay that’s sensitive to voltage and grounds. Poor power or ground will kill all windows at once.