-- HikaShop version -- : HikaShop Business 2.3.1
-- Joomla version -- : 3.3.1
-- PHP version -- : 5.5.9
Hello,
I have a problem updating products on my website: when I create a new product, the alias seems to be saved somewhere. When I try to change the alias, it's changed in the database, but it's not working when I try to display the product in the frontend. It seems to be cached somewhere, but I'm out of ideas where it could be. I already disabled the Joomla cache and I don't use any 3d party SEF-plugins. I even exported the whole database and search inside it for saved aliases, but I found nothing. I also tested it on standard joomla articles and it works fine, but hikashop products do not 
To be able to switch to the correct menu item, I've created canonical URLs for every product, that look like /catalogue/tea/black/{product-alias}. In the menu structure I have submenus for every product category and subcategory. Thus a product with alias "dajerling" would have this canonical URL: /catalogue/tea/black/dajerling. However when I change the alias, url shows no product (not the 404 page, just an empty content). Changing the canonical URL to the same (new) alias leads me to a 404 page. No matter how many times I change the alias, the only working version it the first created. Even if I remove the product with broken alias and create a new one with the same alias or canonical URL, I still get the 404 error
The only solution so far is to create a new product with a different alias and url...
Did someone have this problem? Can this be a server-side problem?
Best regards,
Sergey