Sound stopped working in Animate Pro 2

Imported sound and it imported fine…waveform present…does auto lip sync but will not play sound. have sound enabled and speaker button in transport pushed.

Then I checked my old files that I know worked and the sound will not play on them either.

I have rebooted etc. sound works in itunes and other apps.

mac. animate pro 2.

Everything worked fine the last time it was opened a week ago.

thanks

Do you see the wave form in Time Line? If you render it to movie, do you hear the sound?
If then, have you clicked the sound button? There are two sound buttons that one for playing sound when it is played and other one (with s) is for sound scrubbing.