Run into same issue.

Tried to use: 1. Remove aria-hidden attribute by adding next to useEffect block:

   const exampleSlideVar = document.querySelectorAll('.slick-slide');
   exampleSlideVar.forEach((slide) => {
        slide.setAttribute('aria-hidden', 'false');
      });

but this way I`ve lost my buttons control;

2. Adding tabindex={-1} attribute to buttons

Need help too! Thanks!