Yes, the issue lies with the text editor. When you click the edit button, it reformats any previously present code in the content entered in the editor, almost as if the edit button is applying a content filter before opening the editor. I think it's relative to the permissions that sys_quill has.

The issue is not only with the content of the code button in the editor but also with the HTML button. I noticed this when I entered HTML code using the HTML button while editing the terms and conditions of my site.

The tags from </> button before edit:

<ul>
 <li>....li>
ul>

The tags after click on edit:

 
....
 
 

are not displayed correctly in the browser, and more specifically, their content disappears. I have to manually reformat the text in the editor to display these lists properly. Additionally, the resulting HTML code after filtering is a single line, so HTML code that was formatted with spaces and line breaks in VS Code may lose its formatting after the filters are applied.