Dear Deerhurst
Thanks for the diagnostic suggestion using Edit Preferences
I did that and found a serious weakness in Endnote
Endnote uses the same field called Secondary Title for both Journal for Journal reference, and Book reference
So that means I cannot have two term lists pointing to the same field
Thanks again for your help - without which I would not found this design problem in Endnote. I hope you remain safe from COVID
Warm regards/gary