Not properly working navigation with arrows.
Example on your demo (The latest version works the same):
1. Go to Shoes category. We see shoes 1, 2 and 3 https://goo.gl/2r7TPX
2. Next go to shoes 2. We see left arrow not shoes 1. And right arrow not shoes 3. https://goo.gl/HrJNnU
How to do correct sorting in the category?