Problem when using Elementor custom skin + JetSmart Filters

I am using Elementor custom skin + JetSmart Filters to create a grid with filters (Elementor Posts widget).

I am using the “alternating templates” functionality in Elementor Custom Skin. For example: first box in my grid is yellow, second box is green, third box is pink, etc.

It works great as long as I don’t apply any filters. As soon as I apply I filter (through JetSmart Filters) all the boxes in my grid look the same (same color).

Could you please let me know how to fix this?

Thanks