It sounds as if you have a corrupted thumbs.db file for your photos. Try
the following.
Go into the folder that is having this problem.
Change the view to a non thumbnail view. (View - Tiles.)
Tools - Folder Options - View - Uncheck "Hide unprotected operating system
files (Recommended).
Click Ok.
Delete the thumbs.db file in that directory.
Change the view back to thumbnail (View - Thumbnails).
Tools - Folder Options - View - Check "Hide unprotected operating system
files (Recommended).
This should correct your issue.
Weird! Thanks! It seemed to fix my problem. The mismatching has
disappeared.
My Tools - Folder Options - View - "Hide unprotected operating system
files (Recommended) was unchecked, so I first went to the 'tiles' view
and deleted the .db file. Then returned to the 'thumbnails' view
which re-created the .db file. My filename-image mismatch still
occurred (I did note that the .db file was re-created with today's
date/time). But, and I do say but, when I then went to
Tools - Folder Options - View - and checked "Hide unprotected
operating system files (Recommended), the mismatching disappeared.
I can only hope it stays that way. It has been confusing, and forced
me not to use thumbnails, which I really liked.
Young