Kmar

Hi all I really hope someone can help me who has experienced (& solved!) this. I'm using 10.2.4. I don't know why but some - not all - of my tracks have started playing in a different key, and I cannot stop it. Have checked song key, sample rate...all look normal. Concurrently one of The out-of-tune tracks is also sustaining indefinitely, and doesn't respond to stopping the track manually (i have to shut the whole thing down to stop it playing). I'm totally stuck. It was all fine yesterday. Have rebooted PRAM...any other ideas? Not a Logic expert and have no clue how to fix this. Anyone help?? Thank you!!