Buttons changed (automaticaly) in all my websites and I can't put it back like before

I put all my bottoms with a pill shape. Suddenly I noticed there were now squares, but it says on the styles menu they're still pill-shaped and I can't change them. I can modify the color, font etc. but not the shape. I noticed this happened on all my websites. Has this happened to anyone? How can I go back to the pill shape?

Can you share link to page in screenshot? We can check easier

Here's the link. https://www.viadellastella.com/home

Already uploaded a screenshot. Thank you.

22 hours ago, smook said:

Here's the link. https://www.viadellastella.com/home

Already uploaded a screenshot. Thank you.

Add to Design > Custom CSS

.kw_grid__item * {
    border-radius: 0 !important;
}