Preconditions (*)

1. Magento 2.4-develop (seen originally on 2.3.4-p2)
2. Multi store setup

Steps to reproduce (*)

1. Create category "Parent" in Admin store, deactivate it, is anchor = true
2. Create category "Parent -> Child" In Admins store as a child, deactivate it, is anchor = true
3. Now assign a product to The Child category
4. Go to a store view, enable the Parent and the Child Categories on store level
5. Check in the frontend: "Parent"

Expected result (*)

1. "Parent" should show the Product on the frontend which is assigned to the child, because both a anchor categories.

Actual result (*)

1. Parent category is empty

Workaround

1. Enable both categories on the main store (0) as well, then the is anchor functionality works

Problem might be somewhere here:

• Problem is the products do not get added to the catalog_category_product_index_storeX table

• magento2/app/code/Magento/Catalog/Model/Indexer/Category/Product/AbstractAction.php

  Line 669 in 52d92db

  protected function fillTempCategoryTreeIndex($temporaryName)

Please provide Severity assessment for the Issue as Reporter. This information will help during Confirmation and Issue triage processes.

• Severity: S0 - Affects critical data or functionality and leaves users without workaround.
• Severity: S1 - Affects critical data or functionality and forces users to employ a workaround.
• Severity: S2 - Affects non-critical data or functionality and forces users to employ a workaround.
• Severity: S3 - Affects non-critical data or functionality and does not force users to employ a workaround.
• Severity: S4 - Affects aesthetics, professional look and feel, “quality” or “usability”.