Bugs characteristic prestashop 1.7.5.1

[benja]

Hello,

I am updated a store of car accessories to prestashop 1.7.5.1 from scratch and I have several categories with their corresponding products.

I have created a "Iluminacion" characteristic with the values of faros delanteros and pilotos traseros and another "Exterior" characteristic with the values for paragolpes, kits carroceria, alerones, etc ...

When I select 1 value of the "Iluminacion" feature, it is perfect but when I select 2 values of the same "Iluminacion" feature, all the characteristics appear in this case "Exterior" and if I select the value kits carroceria tells me that there are no products (when there are 5). I leave a video.

Do you know a solution or is it a bug of this version?

Regards,