transfering files from phone to pc doesn't show the file in the folder

Whenever I try to transfer a video from USB (this has happened from 5.92 GB to 512 MB), the files transfer, but they do not appear in the specified folder they should be in, and yet they still take up my storage. There is no error message, I've turned on hidden folders, and I've tried transfering the same video again, but Windows says that it's there. I do not have internet on for OneDrive. Build Number: 26200.7840