Ah interesting thanks for that.
I did manage to coerce the object to work by setting the Computers Date to some 2 or 3 years earlier and the exploding it. Mad but I got there.
AC versions 3.41 to 25 (UKI Full 5005).
Using AC25 5005 UKI FULL
Mac OSX 10.15.7 (19G2021) Mac Pro-2013 32gbRam AMD FirePro D500 3072 MB graphics