Musician Archive

Hi, I have a master dancer / master musician toon. I setup a buffing macro that would startdance stopdance startmusic and stop music. Separate macro for flourishes. A problem I've been encountering is that it will work perfectly for say 3 hrs then all of a sudden it wont switch from dance to music or music to dance. Has anyone encountered a similar problem? And what might the problem be and the solution. Thx a lot