I'm recording a song in Cubase and I am using several audio files of news bulletins. I was playing around with one to add delay at the end of the clip. I was using the write automation to try and manually write in when the delay began. In the end I wasn't happy with the delay and deleted the whole track. Now, bizarrely, whenever I play the song the delay still plays even though there is no track for it. Really odd! I then listened to the section (about 10 seconds) with every track solo'd for the 10 seconds to see whether somehow the sound had made it onto each track - to no avail. I then but every track on solo together and then it didn't play. But when everything was unmuted the audio was still there.

I have absolutely no idea why it's there and no idea how to get rid of it. Any help would be much appreciated!