Lazyload fails to load items on previous page

I have a setup of 21 items and 6 items per page as example. When switching from the first page to the last (by pressing previous page) it will only render 3 items.

This is only an issue with `lazyLoad={true}`

Sandbox:
https://codesandbox.io/s/react-slick-playground-forked-f2t97?fontsize=14&hidenavigation=1&theme=dark


Just press the left arrow once and you will only see 3 kittens, instead of the expected 6