Why does my product description disappear when manually adding items on Simple template?

Hello. I am using the free “simple” template. I noticed that when adding a product to the store through integration, everything works, but if it adds manually then I see the description in the creation form but it is not on the website. There are photos, but no description. The same happens with the privacy policy. If I used the template, the text appeared on the page, but if I create it myself and paste it in the creation forms, there is already an empty page on the page. When adding a product, it also works when you press “duplicate” and on this basis I will make a new order

I’d advice that you share screenshots to make things easier to understand

screenshot of adding products and from the store’s website