Particular folder missing on 1 device, but not another!

Hello there,
I've set up the presentation of 'Folders' to 'Display content only'. When I do this the shared video folders I have sit alongside 'Moves', 'Series' etc.
When I navigate via my Panasonic Viera TV, the folder tree is visible and correct.
However, on my Marantz UD5007 Blu-Ray player, all is visible except one folder named 'Kids Movies'. Interestingly, the folder tree contains 2 'Online' folder on this device also.
The videos actually contained in this folder are playable via their library meta data in 'Movies', 'Genre' etc.
If I don't have 'Folders' set to 'Display Content only' then they are displayed correctly on both devices?
Any ideas?
I've set up the presentation of 'Folders' to 'Display content only'. When I do this the shared video folders I have sit alongside 'Moves', 'Series' etc.
When I navigate via my Panasonic Viera TV, the folder tree is visible and correct.
However, on my Marantz UD5007 Blu-Ray player, all is visible except one folder named 'Kids Movies'. Interestingly, the folder tree contains 2 'Online' folder on this device also.
The videos actually contained in this folder are playable via their library meta data in 'Movies', 'Genre' etc.
If I don't have 'Folders' set to 'Display Content only' then they are displayed correctly on both devices?
Any ideas?