Hi David, Thank you. I will start a new thread too if that's better. When I record a new track, it is slightly out of sync as soon as I start playback. It's very minimal but enough to make whatever I just record be out of time. I've been using Logic for years on huge projects, so I've checked the basics including 'recording delay' being at 0, flex time being off and low latency mode being turned on. Why would this all of a sudden be happening? Thanks.