Cannot create/change new Apple Music (1.3.3.2) library (on Ventura 13.2.1 iMac), current library in use by a device.
I want to create a new, empty library on my iMac, but after clicking Create Library (after Option-double-clicking Music icon) I get this error:
You cannot change the music library at this time because the current library is in use by a device. Sign in without connected devices to change your music library.
I have turned off WiFi and unplugged all ports (USB, Thunderbolt) in an attempt to "disconnect" all devices, but the same error appears. I don't know how to find the device that's in use to disconnect it. And, does signing out of my Apple ID mean that I can only create a new library using a new and different Apple ID? Confused.
Thanks for the help.
iMac 27″ 5K, macOS 13.2