Hello,
not sure this could help you but...
I had the same problem making a custom audio view: SACD ISO where shown as split into their single tracks not having any real file on the target location.
I found the problem to be in the effective folder name containing a ";".
I finally corrected the problem adding an expression to my custom view where the ";" where replaced by "|" (without any renaming of the real folder names).
Regards, Andrea