I think that this should be looked for in some new frameworks

Maybe you need to switch the mode of displaying messages in the console. It is located at the bottom of the Playground. Look at the screenshot below

Thank you so much!

You know, while we were discussing, I'm already used to this appearance)) I won't dive into the settings, I'll leave it as it is. Thanks a lot for your help! I and other people appreciate it very much!

yes it looks like the background of the cell. If I set constraints along with the margins, then the Date Picker will look like this

it is a regular TableViewController with static grouped cells. No code was used here, just an interface builder.

This is my Document Outline on the attached screenshot. I didn't use any code

I used the Interface Bilder

Thank you so much! It works! P.S. But one question remained with me. Why does Jacob's code work without this? Below is a screenshot of his code.

Thanks a lot!

I found the cause and fixed it. It turns out that this is a fairly well-known problem that was repeated in previous versions of the Xcode. In my case, I needed to edit the scheme and reload the Xcode. But it only worked when I shifted on another preview, and then returned to the landmarkList preview. The issue has been resolved. The topic is closed.

Thank you for your help. Yes, I've checked all the files, but it looks like I'm missing something. I will try to redo the project again.