Garage Band Not Playing Back Audio

Hi folks,

I've had an issue with GarageBand pop up. I've checked around, but have found no solution to this.

I've been working for the last two days on a song, opening and closing the app a fair bit depending on what's going on. About an hour ago, I decided to hit the option to play the track through the finder to save me opening if I want to listen over it.

After doing that and opening the app again since, audio is only playing back from two of the tracks. The sound level bars are moving in the rest, but nothing else is happening. I've checked the sound levels and all, but nothing is changing.

Has anyone else encountered this? Please tell me it's recoverable!

Many thanks.

Message was edited by: Malakym