BUG FOUND - when dealing with multiple folders

[poooky2483]

HI
I've found that when dealing with many nested folders, some may have the same (music) file in multiple locations.
When this happens and I do a mass change, such as '_' to ' ' (Underscore to space), I will get an error telling me about it being unable to rename X amount of files.
Yet, when I go into each folder individually, there will not be an error when renaming.
It even happens with folders.