Hi - I'm new to all this, still working my way through it all so apologies in advance for what may be a daft question.

A few days ago I set up a 32 bar sequence with drums, bass, piano and guitar. I had real tracks set up on the Strings and Melody tracks but muted them out (was going to work on them later). As I liked the basic 4 tracks I froze everything. Today I loaded it up and it plays fine until I unfreeze any of the tracks. If I do so, I get a message saying that "The song you are creating has too many bars! Reduce the number of bars and try again."

I'm not adding any extra bars - so what am I doing wrong?