Just to reply to my own message: 20 works. 20.1 breaks everything with regard to Apple pages.
Still we have: italics issue in footnote and bibliography (ongoing for a decade)
Still we have: automatic default to Helvetica typeface when inserting a foornote (changeable by highlightin all references and change typeface)
Still we have: copy a reference and style system changes entirely.
These are ongoing issues that are not recent, but have been around since 2013/14. It really is that bad: if anyone is reading this and considering adopting a system, I strongly suggest you avoid EndNote and look elsewhere until the software is owned by a company willing to invest in its future and not roll out an 18/19/20/21/22 version with absolutely minimal improvements - and no resolution to the problems ongoing for a decade.