Can't access iTunes Match collection from the original device
I keep all my music on an external hard drive, which I hook up to my MacBook Pro when I want to listen. Now I've subscribed to iTunes Match and uploaded everything. I can access my collection from my OTHER devices, but the MacBook Pro can still only play the music when I'm connected to the external hard drive. I've turned sync-ing on and off and on again, but still get the "Can't Find File" message for all my songs unless I have the hard drive connected.
MacBook Pro 13″, macOS 11.5