filter collection issue

[eslamnasr]

Hello, I have this filter on the collection page of my store, but the problem is that the filter does not display products or displays wrong products, for example if I choose Iphone 11 it does not show me the products of iPhone 11, knowing that I have added an external plug-in called ( Smart Product Filter & Search) When I try this external filter, I see that it works correctly and shows me the products correctly , How can I solve the problem with my filter since I don't want to add an external filter , Thanks 

[Liam]

Hi Eslamnasr,

It's possible this filter issue is related to the theme you're using - can you share which theme this is on?