Intermittent Ignition Issue [66 Valiant /6]

Ok, what the hell.
Just came back to the car after work today, and it cranks. I had the car towed, let it sit overnight, and now it’s cranking again. The new starter relay isn’t even connected to the battery on the BAT connection. Just via the ignition and the solenoid.
No idea what this means, can you post a photo?