Pre roll issues

Anytime I try using the preroll option (Only on the Mobile app) my music jumps after the 4 beats. Usually around measure 3. This is my uploaded music and I can't get the music to start at measure 1. Im guessing the player starts even though the screen is paused for the pre roll. When the count is over the music just plays from where ever the player would be after 4 beats passed. Anyone else have this issue on the mobile app?