suggestedEntities not being called

I'm adding AppIntents to my existing "ShopList" app and I'm having two problems that I think are related.

1. I can't get shortcuts (or Siri) to work when I pass a parameter to an intent. It works if I don't pass a parameter though.

2. My StoreEntityQuery.suggestedEntities function is not being called during initialization.

I have an AppIntentsShortcutProvider defined as follows.

class ShopListShortcuts: AppShortcutsProvider {

static var appShortcuts: [AppShortcut] {
    AppShortcut(intent: FindStore(), phrases: [
        "Find \(\.$store) store in \(.applicationName)"
    ],
    shortTitle: "Find Store",
    systemImageName: "cart")
}

}

Details below. I would appreciate any suggestions on what I'm missing or doing wrong.

In my AppDelegate "didFinishLaunchingWithOptions" function, I call ShopListShortcuts.updateShortcutParameters.

The FindStore struct is defined as follows.

struct FindStore: AppIntent {

static var title: LocalizedStringResource = "Find Store"
static var description = IntentDescription("Finds a store.")

static var openAppWhenRun: Bool = false

@Parameter(title: "Store", description: "The store.")
var store: StoreEntity

@MainActor
func perform() async throws -> some IntentResult {
    
    print("performing intent with \(store.id) and \(store.name)")
    
    return .result()
}

}

The StoreEntity is defined as follows.

struct StoreEntity: AppEntity {

...

static var defaultQuery = StoreEntityQuery()

var id: Store.ID

@Property(title: "Store Name")
var name: String

...

}

And finally the StoreEntityQuery is defined as follows.

struct StoreEntityQuery: EntityQuery {

func entities(for identifiers: [StoreEntity.ID]) async throws -> [StoreEntity] {
    print("entities call")
    return ...
}

func suggestedEntities(for identifiers: [StoreEntity.ID]) async throws -> [StoreEntity] {
    print("suggested entities call")
    return ...
}

}