Automator app not working in Sierra

[Hythe Kent]

Around four years ago I created some Automator scripts to carry out basic sub-editing tasks while working on Word doc manuscripts in our publishing business. Since moving to Mavericks and now Sierra some of my Automator apps do not work.
I am given the warning dialog: "The action "Find and Replace Text in Word Documents" encountered an error.
If you look at my screen grab you will see the rest of the dialog.
I also saw another dialog which said that the 'Find and Replace' action where newer. That lost me.
This indicates to me that Automator does see the Word document that I am working on, but stops at that point.
I tried to re-save the Worklflow to see if that would "update" things but no luck.
One app that reshapes and formats the Word.doc does still work.
Any clue what the problem is?

 

[Hythe Kent]

Having looked more at this, it seems that it is just the 'Find and Replace Text in Word Docs' that does not work with Sierra, any idea why that may be?