Grid Responsive Issue: Can't Remove Second Box to Drop Div

Hello everyone! I have a responsive problem on my grid. Can’t delete the second box to make it drop the second div automatically. Any idea what the problem is? Here’s the link: https://preview.webflow.com/preview/alexandres-groovy-site-81004d?utm_medium=preview_l[…]b27624f174&pageId=65f84446960d05b29caf12da&workflow=preview