BS Player won't play files in a particular folder

Running Windows 8.1, BS Player PRO 2.65. I recently transferred several movie files (various formats) to a Toshiba removable drive. After doing so, I copied the files on my drive to a friends removable drive.

Now the files in one particular folder on my Toshiba drive will not load in BS Player. I get no error and BS Player opens, but the video window won't open and no matter what I do the file won't load. It's as if I opened the program from the install directory. I can load the files to the playlist, but they still won't play.

The same files work fine from my friends hard drive (virtually the same path) and the other files on my Toshiba drive work fine as well, just not the files in one particular folder (and sub folders). I even deleted the folder and copied it back from my friends drive to no avail. These same files work fine using VLC, so I know the files aren't corrupt. Any help would be greatly appreciated...I'm stumped.