Could not open dir (null)

Added a favorite to Media Player, on a SMB share (Readynas). Folder contains only m4v files. When trying to browse this dir, I get an error:
Could not open dir (null). Reason: unknown error: 8215 (8215)

Jailbreak
Using Seasonpass, atv flash beta 5
Serial number:C7RDLAY5DDR5

I too am getting this error but I am also getting a “there are no items for playback message” when I try to open folders that contain mp3, aiff and m4p files :frowning:

 

ATV" Black installed tonight

ATV2 4.3 untethered with seasonpass

BTHUB3 router

Iomega NetHDD with iTunes library and other files