I do not know if this is the fault of the theme or if it happens only with me … But if anyone can help me I’m happy.

In the image when I click on any block the list is with a blank. But if I click on the block of the list that blank disappears. How to remove this white space that appears from time to time? I think it’s some CSS in the theme, but I searched and did not find it. Maybe it might even be a CSS I’ve added myself but I do not know.
I am asking this here, because it happens in all the sites in which I use GeneratePress.
Another problem is the video. When I paste the link from a video in the text editor the player does not appear. In fact a written message appears: This content could not be embedded.
This happens on only one of my sites. I do not know if I did any shit … But I use a tag, css and responsive function in the videos that I had to remove from the other Generatepress sites if there is not a blank space after the theme update. Already in this main site the white space does not appear, but precisely because the block is not detected as a video to activate that new option of responsive video.