Frames wont playback with music(sound) at a same time

Hi guys

I am using storyboard pro to create animatic for a musical animated short film.

I imported music track and it plays correctly, but when I want to playback through my animatic music and frames wont play together.

Frames play ( without music) as long as sound icon is disable in playback tool bar, by enabling sound icon music plays but frames wont.

Any comments will be appropriated.
Thanks :slight_smile: