Fails product import on Magento 2.3.x

Question

I am creating new import module and I have issue with new created Product. Product doesn't want to create:

In StockRegistry.php line 194:

  The Product with the "13.111.116" SKU doesn't exist.  

My code is:

$this->state->setAreaCode(Area::AREA_FRONTEND);
/** @var Product $product */
$product = $this->productFactory->create();
$sku = $item->getSku();
$product->setSku($sku);
$description = $item->getDescription();
$name = explode(',', $description);
if (key_exists(0, $name)) {
    $product->setName($name[0]);
}
$product->setDescription($description);
$product->setPrice($item->getRecommendedPriceAmount());
$product->setStatus(Status::STATUS_ENABLED);
$product->setAttributeSetId(4);
$product->setTypeId(Type::TYPE_SIMPLE);
$product->setVisibility(Visibility::VISIBILITY_BOTH);
$qty = $item->getAvailableQuantity();
$isAvailable = ($qty > 0 && strcmp($item->getAvailabilityCode(), 'available') === 0);
$extensionAttributes = $product->getExtensionAttributes();
$extensionAttributes->setWebsiteIds([1]);
/** @var StockItemInterface $stockItem */
$stockItem = $extensionAttributes->getStockItem() ?: $this->stockItemInterfaceFactory->create();
$stockItem->setQty($qty);
$stockItem->setIsInStock($isAvailable);
$extensionAttributes->setStockItem($stockItem);
$product->setExtensionAttributes($extensionAttributes);
$this->productRepository->save($product, true);

I am getting exception on save step. Adding product via API is working. I think it can be problem with AreaCode or MySQL. If I save via Product Resource Model, I am getting Lock wait timeout exceeded.

Maybe some one know solution. I tried different ways to save