UpsertResourceListResponse::current(): Return value must be of type array, null returned

[himanshuRWS]

Getting a Type Error, when using upsertList and pushing more than one product and iterating the response.
The same was working when I was using client version 9, and facing this when updated to 11.4.0

$response = $this->pimApiClient->getProductUuidApi()->upsertList($products);

foreach ($response as $item) { dump($item); }

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TypeError: Akeneo\Pim\ApiClient\Stream\UpsertResourceListResponse::current(): Return value must be of type array, null returned at D:\Akeneo\sample-apps\samples\start-app\php-symfony\vendor\akeneo\api-php-client\src\Stream\UpsertResourceListResponse.php:38 at Akeneo\Pim\ApiClient\Stream\UpsertResourceListResponse->current()