Problem with Attributes

Hello,
I have a problem with the attributes, they work fine in the A-Z direction but if I select the products in the Z-A direction it does not work.

Ps: I don’t want to use the option (steps required)

Our site is in creation and thus the access and block if you wish to visit it we will unblock it on simple request.

How can I do this, it prevents me from putting my site online?
Thank you for your help.

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