If you are having trouble adding or removing text underline using the portal editor this can be fixed using the Source Code Editor.
This issue usually happens when adding a link as it automatically adds underline and sometimes it’s hard to remove. This is because the text-decoration is added to a span that wraps around the linked text and it also adds it to the <a></a> but unfortunately when the underline is removed it’s only the span that gets deleted an the style on the <a></a> sticks.
If you do not want the text underlined you need to search for text-decoration:underline; in the Source Code and change it to text-decoration: none; in the <span></span> and/or <a></a> wrapping around the text that is underlined/linked.
If there is no sign of text-decoration:underline; anywhere but the text is becoming underlined when you hover over it then you need to either find style=”” within the <a></a> and put text-decoration:none; inside it OR if there is no style=”” then you need to add style=”text-decoration:none;” into <a> so it looks like <a style=”text-decoration:none;”