I’m trying to modify the included AppleMusic Grid to control my Windows 11 PC, and got the above error. I tried restoring purchases but no difference. I do have a Premium (Early Supporter) plan.
Thank you for reporting this. Could you please check whether objects in any of
the other included Apple software grids are also shown as locked when you try
to edit them, or whether this happens only in the Apple Music grid?
Please also let us know whether every object in the Apple Music grid is locked
or only particular objects. This will help determine whether the problem is
related to the Apple Music preset itself or to the Early Supporter premium
entitlement.