I want to experiment with changing the tempo of a project. To this end I open every part on all of the audio tracks and set each one to Musical mode. This works fine for most of the parts, but as soon as the parts on a couple of the audio tracks are set to Musical mode I can see that the audio events immediately move to different positions and playback out of time. If Musical mode is turned off again the events move back to their original positions. This is without even changing the project tempo.
Can anyone think of an explanation for this?