AutoCAD Civil 3D :: Updated Data Shortcut Source DWG Not Updating

I am having an issue with alignments not updating to the latest source drawing.  Initially, the alignment source drawing was in File1.dwg.  Due to a design change, a few of the alignments were revised in a new File2.dwg.  For the first time ever, I used the Data Shortcuts Editor program to repoint the data shortcuts to the new File2 location.  By all accounts, it looks like the data shortcut were updated to the new source drawing (File2). 

The problem is in some files some of the alignments still source to the File1 location and even when manually synchronizing it still sources from File1.  Additionally, it seems random in terms of which alignment and files source to File2, even to the point in some files one alignment will update to File2 and other won't and some alignments will update in some files but not all.  Note that I am not the original creator of the files so I don't know much history on the files (no alignments seem promoted however).

What’s the best way for me to get all the alignments to point to the new data shortcut source drawing location?