My Apple Music collection vanished after signout-signin
When I launched iTunes this morning, most tracks were greyed out. Some posts online suggested that I sign out and sign back in and that should resolve the problem.
However, after signing out, closing iTunes, opening it again and signing in, my entire Apple Music collection was gone! I thought it might take a while to sync, but everything is still gone.
How do I get my large music collection back? I use iTunes on Windows.
Windows 10