The first thing to do is to verify that all your pages are included in this revision.
Click on the revision name in the top left corner, if the option "specific pages" is ticked, then the module will only reflect Abbreviations included in the specific pages of this revision.
One workaround to be able to publish only those specific pages and see all abbreviations would be to:
- Publish this partial revision,
- Create a new revision with all pages included,
- Update the abbreviation module,
- Give the same revision number/date, and publish it,
- Make the partial revision unavailable in the Revision Archive.