Hi there. There is a bug with looping any track whereby there is an audible click when the play head hits the Right marker. This occurs when there is an audio clip on any track in SoundBridge and when there is an audio clip close to the right marker. Usually this type of click sound is associated with the 0 crossing of audio when it cuts off too early and can be fixed with a small decay which would have to be written into the Right marker code internally.