Sort products by display order

I am using NopCommerce 4.40.2 and I am trying to sort products by display order in a category.
I found that I can choose the display order value in the tab Product from Catalog > Categories > MyCategory.
But it has no effet on the display order of my products in my shop.
I've already checked if "Allow product sorting" is enabled in Configuration > Settings > Catalog Settings and if "Show on home page" is not checked in MyCategory. My product is only in one category.
Am I missing something ?

I am also having same issue after upgrading to 4.40.2. Sorting was working fine in 4.30.

It’s a bug, and they are aware of it.

 https://github.com/nopSolutions/nopCommerce/issues/5650

Any update?

This issue was fixed in version 4.40.4