Photos files showing up under video folder?

why does my pic folder come up under video folder? i tranfer pic over to photos folder and i open video folder and theres a pic folder which i just added?? plz adivse…

If the media library is turned off, that will happen.     If you view the folders WHILE the media library is compiling, that may happen.  If there is ANY video in that folder, it will happen.

Do any of these apply?