The Up Next feature in iTunes on my new 32 GB iPod Touch does not work.

I just bought the latest 32 GB iPod Touch and discovered that its iTunes has the Up Next feature, which I love using on my iMac iTunes. I pick a song to play, pause it, pull it up so the Album Art is visible, then click the dots/lines on the right side above the volume slider. That brings up the Up Next feature and I click Clear, to clear the songs out, then I click Add, which takes me to a screen where I select Playlists. I pick the playlist I want to pick from and touch the + symbol for each song to add it. When I go back to see them all, they aren't there. Or, they are, but they never play and the list is clear when I check it again.

I've discovered another way to fill my Up Next list: Just go to the Playlist I want, click a song to start playing, then click the 3 dots on the right of the song I want to Play Next, then click the 3 dots to the right of each song I want to Add to the Up Next. This way seems to work (so far).

Why have other ways to Add songs to the Up Next if they appear to work but don't work? That is very frustrating.