When you post the HTML language to embed the image, the text box expects everything else to be HTML so there will be no paragraphs rendered without a para code. If I’m working with an image, I use my HTML editor to create the post. Then I take the HTML code my editor generates, and paste it into the text box. If you’re interested in using an editor, which is pretty neat, FReepmail me.
Speaking of html editors - use this one.
Its free. And you don’t have to download anything.
https://html-online.com/editor/
I am going to PM you, for more than one reason now that you invited me... :)