Hi @EricDF94,
The filters are dependent on selected categories or taxonomy and it’s been like that. And the one here https://digixid.com/skin-gambling/ is different. You’re using a shortcode to display a filter. The one on that page uses an actual grid filter assigned to the area. If that’s what you’re trying to achieve then you should do it exactly the same, using shortcodes.
Example, 
instead of this

And I’m not sure about CSGO don’t belong to Buy/Sell skins, I edited an item and it’s assigned to both.

The item is a Buy/Sell skins
and the supported skins is for CSGO
. Does that mean you’re adding the CSGO
as supported skin but not for Buy/Sell skins
? If yes, then you don’t have to assign Buy/Sell Skins as well.
Thanks!