Adding citations to existing citations in text - Mac OS Mojave, Word v.16.2

I have the system/software above.  I believe this problem began after upgrading to Mojave. 

The CWYW is working as it should; however, when I want to go “back in” to edit a group of citations using the right click to pull up the “Edit Citations” dialogue box, and then click “more” – I am now getting the full list of citations in the article, and not just the few that may be where I right-clicked to edit/add a citation to.  Closing out and restarting is not correcting this. 

Incredibly annoying, and not finding other posts of similar problem.  Suggestions?