Glitch with playlist used for photos slideshow

Here is another interesting one - don't know whether people have noticed...

I have a mixture of smart and normal playlists. They appear on the nano in alphabetical order, unlike iTunes where he smart ones are always above the normal ones. I say this as context, because I suspect, but am not sure, that it is related to this...

When I select a playlist to use in a photo slideshow, I get the wrong one. If my playlists were numbered 1 to 7, and I select 4, I get 2. If I ask for 5, I get 3. I have exactly the right number of smart playlists above the one I want to cause this offset.

Going to test it properly later - in the meantime, anyone else notice it?