by: Jamie Cuevas
Some iPhone users are experiencing an error message that says “This iPhone is open in another window” when attempting to sync music between their Mac and iPhone. Users may see the error message even when there is no other window open in the Music app on Mac, making this a peculiar error message that doesn’t necessarily make sense.
If you experience the “This iPhone is open in another window” when attempting to use Music on Mac to sync music between your iPhone and Mac, read along for troubleshooting steps.