I think you don't understand the issue.
The problem is visible the navpane to the left when expanding the Computer node.
Changes made outside of MB, such as a new folder created or renamed, are not updated.
@phred, no, rescan files don't work. The left navpane still show the old cached folders.
Same thing if I press [Insert] and scan for new files (in my case I scan from C:\Music\). The left navpane still show the old cached folders.
This is very annoying.
My request is that MB will refresh the filesystem with the OS when you click (expand) and navigate in the Computer node folders.
Example:
Computer
C:
Music
Listen <--- I click here, to collapse the folder
foo
bar
baz
In Windows I create a new folder C:\Music\Listen\New_folder\
Back in MB I expand it again:
Computer
C:
Music
Listen <--- I click here again to re-expand the folder
When expanding a folder, this should trigger a filesystem refresh. Result should be:
Computer
C:
Music
Listen
foo
bar
baz
New_folder <------------------------------------------------ Voila! Visible.