Why did these bugs appear in slick.js?

Question

css

https://ansar.glowstore.kz/

Found 2 bugs
1) Main slider. It has 6 elements. When moving and vice versa from the last element to the first element, the animation of the first one does not work. Why?
2) Slider on 3 section. If you press the next slide button (arrows) about 10-14 times, then the width of the slider becomes VERY large and everything flies. Why?

Please tell me what could be the problem or how to fix it!

Answer 1

1) he has such a bug
2) check something with markup.
3) something else with shadows