Repeating songs after I load albums. Please help

I have an idea I’ll try pretty soon.

And that’s to format the Clip Sport, just to start with a clean slate, and then try drag & drop using my Win 7 computer.

If I still get duplicate songs, it tells me the problem is in the Clip Sport.

If I don’t get duplicate songs, the problem is in the Win 10 computer, and will be what I need to troubleshoot.