I am sorry but I have now sorted out the book concerned and now cannot remember the exact sequence of Plunins I used. I have been to sleep since then.
I cut and pasted the string into notebook. I then deleted the strings in the book and made the posting here. I cannot now remember if I was able to use the original cut or cut and pasted from notebook.
I will keep my eyes open for this in the future and immediately document what plugins I used and when. We can then speak with certainty. Watch this space.
I'll be back.