'67 Dart GT wiring question

As in they do not automatically turn off when you turn the wheel straight, or you have to turn them on off on off on off to make them blink
I have to blink them manually, on/off, repeat as necessary. The blinker arm does return to center when the steering wheel returns. It's not a bad relay, I already changed that. Again, it's better than before, for now, I'm good with it.

At least I can stop using hand signals. Heck, I don't think many people even know what they are anymore.