When adding new folder with songs, songs duplicate in other folders. Help!

Hi everyone! I hope someone can help me.

Several times now, when I copy a new folder into Engine OS, in addition to being placed in the folder I select, some of the tracks inside that folder end up being copied to other unrelated folders.

I’m not sure if this is a bug or a database issue, but it’s really frustrating having to search folder by folder to find where the tracks were duplicated.

Thanks in advance for your help!