"Edit Referenced File Locations" won't recognize changes.

Hello! Very frustrated right now. I've got an assembly that accidentally had half of its references updated to a single computer's Documents folder, so I'm trying to go through and fix the references. However, after I make a change for a part, hit OK (gotta do this for each individual change in case one of them is wrong and SW prompts me to delete all my changes instead of saving the correct ones), and then open the "Edit Referenced File Locations" window again, they've reverted.

Someone please tell me what I could be doing wrong here, before the desktop goes over the cubicle wall.

SolidworksGeneral