Variations not show in Search

Hello and congratulations on your work.

I use the Free version and I notice that in the search field it does not display the variations when they come from two attributes or more.
When the products have only one attribute then it shows all the values of the variations.

My problem seems to be this:

https://www.ads-software.com/support/topic/search-does-not-show-variations/

I also have the “Search By SKU” plugin installed but the problem was not solved when I turned it off.

Can you help me, please?