1) Have you checked the other replacement settings/options available via clicking the "More" button in the Find & Replace window?
Yes. I am very familiar with the “More” function of Find & Replace and use it every time.
2) Is there a pattern to the replacements that are made; does the replacement stop after just one correction, two corrections, only works in one chapter/section maybe....? Etc..
A pattern is difficult to ascertain. I have no way of knowing if it did correct a few and then stop, as it corrected them. I deal with manuscripts from people who often spell phonetically, and it is my job to correct those errors. (Suprise vs Surprise)
3) Have you clicked the Show/Hide icon (backwards looking paragraph symbol) to reveal the hidden formatting symbols?
I use it (when I first correct the formatting) but don’t keep it turned on. I turn it off as it clutters the screen.
4) What is the word that needs to be replaced and what is the correction?
It’s not just one word, but many. However, F&R does work on some words. As an additional piece of information, when I work on the same manuscript on my machine with Office 2010, F&R works correctly.
Thank you for you assistance.