If I type the field name into the ‘code’ part of the data picker it works so it appears to be when the data picker is looking up the fields, it doesn’t account for the id of the region. I’ve also tried it when the SC is within a modal and it does the same - anytime the parent id is required, it seems.
I don’t know the full list of components that require the id to identify Server Connect binding within but it definitely happens with conditional regions and modals. The select element works on the page if you manually put the field name in using the code view of the data picker - it is just that the actual picker part is completely empty