After removing bulkead connectors to clean no start
It's typical of failing ignition electrical components to stop when hot then work again once they've cooled. Applies to any brand. They will stop/fail for good eventually. Reads like that was your root problem. So no start after terminal cleaning could be coincidence. And...
Depending on what car, what loads have been added on, pushing the bulkhead connectors back together could have pushed a female terminal out of a melted port. The blue or blue w/white tracer from ignition switch feeds ignition, charging, electric choke, most everything under the hood. Aftermarket component and/or addons have cooked this circuit. Good luck with it.