@james
I feel somewhat condescended to (I know how selects work); I hope that wasn’t your intention.
Anyway, I just realised that this topic I opened is over a year old. Last August I filed a bug report, as nothing happened with this topic. That report is here: https://support.advancedcustomfields.com/forums/topic/cannot-create-unchecked-radio-buttons/ .
I think it would be better to continue this over there, as there has been more discussion and most of the points I was going to make here, I have already made there.
