Report duplicate/defective loops here!

Problem is that sometimes, if the loop is not loaded fast enough the sound started and is playing. Simultaneous the image frames are played and in one of that frame is the Marker to start the sound for the next round.
(Try right click and uncheck "play", the music will keep on playing and will come to an end. If you check play again the image will continue and the next time it triggers the sound you will hear it again).
So maybe your Flashplayer was too old back then or your connection speed wasn't fast enough to load the image src fast enough so that the music finished playing a bit before the image did

Flashplayer always at last version. I have DSL 13.000 effektiv from Telekom. I will play with the settings