MixItUp 3 and Webflow Interactions problem

Hello friends!

I am helping a client with their website, on one of the pages we made integration with MixItUp 3 to filter through the dynamic collection.

You can see it working on this page https://s.getastra.com/our-partners.

For some reason, when filters Location and Tier are selected (not category), the animation that supposed to hide white navbar stops working. When filters are reset, everything goes back to normal.

If any of you had this problem and solved it, please let me know. Cheers!