Filtering by attributes reset

Hi there, I’m trying to solve a problem with filtering by attributes. I’ve set up multiple attribute groups for my products but anytime I select options from 2 different groups, site breaks and doesn’t show anything.

Is there a way to reset the filter when user selects attribute from a different ‘group’ and use only the second option?

I’m really stuck on this problem for a couple of days now and I’d appreciate any kind of feedback, thank you.

-Miroslav

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