Not sure what has happened but using the picker to insert references into footnotes in Word 16.32 for Mac and just updated Juris-M5.0.80m8 does not appear to recognize preceding references which ought to appear as supra. (BTW Zotero does not recognize references for purposes of "supra" cites either, and they both used to.

This is happening on both of my Macs, so it is really weird.

are there some steps I might take to remedy this?