Good idea! I dropped a complete unstyled form into the section (not in the container inside the section, but on the section itself) but still the actual checkbox did not show up, just the label. So its probably not a Z-index problem. I had them visible on publish earlier today and all I’ve done is doing some tablet and mobile optimizing on them. But since the checkbox show up on mobile in Safari, it’s rather something wacky with my browsers!