playing wrong Song in some playlists

I have a strange behavior in one playlist. Its the "the essential ska" playlist. When I select a song and hit enter spotify plays the song above the selected. If I select the first song, noting happens. And that is only on the first page. If I scroll down it plays a fully random song, sometimes the right one.

I have no idea whats wrong with that playlist, but maybe it points out to something that is missing. If it is not helpfull, the issue can be closed.

Ah and shuffle and repeat are not activated.