CDA5- When I drag a track in the tracklist to reorder the tracks, the track that gets moved is the one directly below the one I drag.

That is, if I drag track #4 to precede track #3, what happens is track #5 is dragged to precede track #4.

If I drag track #3 to follow track #5, what happens is track #4 is moved to follow track #6.

Am I missing something or is this a simple bug in the indexing?