Not all files and folders are not being copied (overwritten)

Hello!

I just noticed (by pure accident, because I obviously expected this to work without doing QA myself) that many folders and files are not being copied to the SanDisk SecureAccess application (the big content window) when using Drag’n’Drop.

Most files and folders are being copied, but when I go deeper into the folders to check the files, I cannot see anything being copied when I check the contents of the USB drive.

I must be doing something wrong?

If anyone can help me shed some light on this, please chime in.

Thank you!