A904 no shift into 2nd or 3rd

So just an update, I removed the valve body and checked the band adjustments and the servos. Again, front band is close and probably a little tight.
No material in pan this time when removed.
Re-installed VB (1970) and used 42RE deep pan with added drain plug along with reusable Mopar gasket.
Filled while running in neutral as always, went from N to D and noticed it shifted into second on its own!!!
WTF???
I finished topping the fluid up and took it out for a run.
It shifted under throttle at 45-50 MPH (not exact) and I didn’t go far enough to see if it would shift into 3RD.

Any new ideas now? VB pressure too high? Band set too tight/loose? Or could this be all in lockdown adjustment?

I did notice the converter (I think) making funny “clicking/clanking” noises after I shut the engine off since I got it together, after this last fluid change there is no noise when I shut it off.
Strange, I was thinking the noise was lifters draining down after I turned it off. I have a video you can hear it clicking before I do a hot re-start.