@JoeKun Thank you! I have confirmed that this is fixed in iOS 15.5 beta 1.

Thank you @JoeKun. I too think it would be best to change the structure. I hope the specs will be updated.

Thank you for your confirmation. I submitted FB9959590 with attached sysdiagnose.

Hello @JoeKun, This issue occurs with iOS 15.4.

@JoeKun Thank you for confirming! I was relieved to know that it is being investigated, as the only response I received on my ticket was that it was as per spec.

@JoeKun That's unfortunate, but the endpoint for personalized recommendations is also a very nice feature for me. Thanks for your reply!