If you hit pause when the time remaining is 0.00, then hit play, it plays the next track but the display still shows the title and time remaining/elapsed of the previous track and if you switch to the playlist/album view the speaker icon indicating the currently playing track is next to the previous track.
If the previous track was longer then you get a period of silence at the end of the currently playing track. You can fix it by hitting Previous Track then Next Track.
Definitely wasn't in iOS5
If the previous track was longer then you get a period of silence at the end of the currently playing track. You can fix it by hitting Previous Track then Next Track.
Definitely wasn't in iOS5