I have also experienced that the audio form youtube keeps playing even though the kiosk has moved on to the next image. how can I correct this?
This sounds like a bug. If you find something that seems like its a bug, please contact me using email at support at burningthumb dot com. Typically I need to get more information, in that case the youtube URL, so that I can re-create the problem on my test devices. Once I can re-create the problem I can schedule an App update that fixes it and typically give you an early release of the update to solve the issue for you before the App update is available in the Play Store.