NSPersistentStoreDescription(url: storeURL) ^ Updating the storeURL above resolves the issue on macOS. I suppose the sandbox on my macOS device was incompatible with my iCloud data for some reason. Need to investigate further, but I think this at least allows for a temporary work around.

Additionally, I'd love to know if Apple has a list of the new macros included with Swift by default. The Swift documentation appears to be more about how they work and how to write our own.

For anyone receiving this error. Upgrading my XCode to the corresponding beta (15 beta5) fixed the issue

I'd just like to affirm that we are running into a similar issue. Since @Observable is not designed to work with combine (I think?), why not just keep them as ObservableObject with @Published properties?

Yes that fixed the issue, thank you!

In iOS 17, if you configure the PhotosPicker's selectionBehavior to .continuous with a maxSelectionCount > 1 then it will update the array on de-selection