[Fix bug] Displaying sub-products issue.

Author: [email protected]

Block/CategoryId.php

@@ -119,6 +119,7 @@ public function getProductIdsByCategory()
         $productIds = [];
         $catIds     = $this->getSliderCategoryIds();
         $collection = $this->_productCollectionFactory->create();
+
         if (is_array($catIds)) {
             $collection->addAttributeToSelect('*')->addCategoriesFilter(array('in' => $catIds));
         } else {
@@ -135,11 +136,11 @@ public function getProductIdsByCategory()
         $productIdsRandom = [];
 
         foreach ($keys as $key => $value) {
-            $productCollection = $this->_productCollectionFactory->create()->addIdFilter($value);
+            $productCollection = $collection->addIdFilter($productIds[$value]);
             $mpProductIds = $this->getProductParentIds($productCollection);
 
             if (!in_array($mpProductIds, $productIdsRandom) && !empty($mpProductIds)) {
-                $productIdsRandom[$value] = $mpProductIds;
+                $productIdsRandom[] = $mpProductIds[$value];
 
                 if ($key >= ($this->getProductsCount() - 1)) {
                     break;