This spacing is being added before the lines. The editor doesn't have any spacing editing feature.

We already tried to "clear the formatting" and then apply a font size to the paragraphs but the result didn't change. The editor shows the text without any spacing but when the article is released then the spacing is applied to the final page. We aren't copying and pasting any text to the editor when editing them. The original texts are being pasted from other sources which don't have any rich text editor but be aware that the articles don't have any problems when we publish them for the first time. The problem is only introduced when we start to edit the articles.