It is possible the “Field codes instead of values” box in the “Show in Document” area is selected.
Please try the following in your version of Word for Mac.
- Open the Word document using Word for Mac.
- Select "Preferences" from the Word menu.
- Click on the View button (present under 'Authoring and Proofing Tools') in the Word Preferences.
- Uncheck the "Field codes instead of values" checkbox present in the View dialog box (present under "Show in Document" ) as in the Field codes instead of values.jpg.
- Close the dialog box and retest the problem.