More photos in LIghtroom Mobile than in Desktop

Sorry if this has been covered already, but I didn't see this exact problem.  

I use a Fujifilm XE-3, which uses Bluetooth to communicate with an app on my cell phone for GPS tagging, etc. when I turn the camera off.  So in my typical workflow, I shoot a series of photos on the camera, which transfer automatically to the phone when I turn the camera off.  Later, when I open Lightroom Mobile on my Android phone, I can watch as all the photos populate into Lightroom.  So far so good.  The problem is when I turn on the desktop at home - typically only a portion of the photos that are already in Lightroom Mobile will actually transfer into Lightroom on my Desktop.  Both desktop and phone LR versions will tell me they are synced and backed up.  I typically end up pulling the card from my camera and loading them all in manually, then deleting the duplicates which is a huge waste of time.  Any suggestions?  How can both mobile and desktop versions say they are synced and backed up when they have a different number of photos in their respective libraries?  Thank you for any suggestions you may have!