How do I Get a certain sound to stop?

I have a sound that I would like to stop after clicking on something, so I tagged the sound and used the "stop" event with the same tag, but the sound effect kept going! How can I fix this?

How do you start the sound - on start of layout or a check that the sound isn't playing? If it's not that, check that the stop event is firing by adding an indicator event to the same sub group as the stop command (close browser, for example). Without seeing what you've done it's only possible to guess.