SKProductsRequest Returning Invalid Identifiers Despite No Pending Agreements

I'm suddenly receiving zero products from SKProductsRequest, even though this setup previously worked without issues. The debugger shows that both of my product identifiers are now being returned under invalidIdentifiers, and response.products is empty.

I’ve confirmed the following:

1. There are no pending agreements in App Store Connect.
2. The subscription is active and configured correctly.
3. The product identifiers match exactly with what’s defined in App Store Connect.

Here is the delegate method I'm using (unchanged from when it previously worked):

extension UpgradeViewModelProvider: SKProductsRequestDelegate {
    func productsRequest(_ request: SKProductsRequest, didReceive response: SKProductsResponse) {
        if response.products.count > 0 {
            delegate.send(.onProduct(response.products))
        }
    }
}

Since everything was functioning before, I’m trying to understand what may have caused the identifiers to suddenly be marked as invalid. Any guidance or suggestions on what to check next would be greatly appreciated.