Apple Music doesn’t work on secondary device (iPad) linked to the same iCloud account

App used to run perfectly, but when I changed region on both devices iPad and iPhone the app doesn’t work on iPad anymore, even if I have debit card of new region, changed region in settings, App Store and what the most important is I PAID AFTER I LINKED CARD FROM NEW REGION AS WELL AS CHANGED BILLING ADRESS before buying subscription. Now Music app doesn’t let me use subscription I paid for. Restart of the device or reinstall of the app did not help.

[Edited by Moderator]