In Magento 2.4.x CE site noticed that category pages are displaying same content/products whenever a category has more than 2 pages. Basically pages 3, 4, and so on display page # 2 products. Tried clearing cache, re-index couple of times but still no clue. Doesn't appear to be related to a theme as disabling or changing to other didn't fix the issue. Products are not duplicated in the category based on the back-end data.

Any clues on how to debug this issue as I don't see any errors or messages in the logs.

Tested rest/default_1/V1/products?searchCriteria API endpoint with different category id's and results matches with admin panel numbers.

What other code or files I should check to debug this further or any other clues?

Doesn't appear to be indexing issue either, as I see same results even after running indexer:reindex couple of times.


  • may be indexing issue? try to run bin/magento indexer:reindex command Oct 25, 2021 at 5:08
  • Doesn't appear to the index issue, ran reindex too and it didn't resolve.
    – cnu
    Oct 26, 2021 at 1:29

2 Answers 2


I think you have some customize on theme or code,

you can check these file, which is responsible for rendering category


also, check SQL by breaking out the debug on

  • When I echoed _productCollection in the list.phtml, I see current page count only. Any idea how to debug this in the server as I don't have working local environment?
    – cnu
    Oct 26, 2021 at 2:10
  • Also I see following code in out of box ListProduct.php function. public function getLoadedProductCollection() { $collection = $this->_getProductCollection(); $categoryId = $this->getLayer()->getCurrentCategory()->getId(); foreach ($collection as $product) { $product->setData('category_id', $categoryId); } return $collection; }
    – cnu
    Oct 26, 2021 at 2:11

Reverting to Magento default search engine(Elasticsearch7) has resolved the issue. Need to see why a 3rd party vendor extension for Elasticsearch is causing this issue.

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