Since updating to the High Sierra beta, the media keys (skip backward, play/pause, skip forward) do not seem to be working with iTunes anymore. They do however work in Safari to control the playing and pausing of video content (e.g. YouTube).
iTunes Version: 220.127.116.11
macOS: 10.13 Beta (17A358a)
Any ideas would be helpful!
I'm having the same problem, too frustrating.
This is a great solution in October 2022