Hey Tom. Just writing this over here now. Seems when I have the Page Builder by SiteOrigin plugin active, the editor does not work correctly in the Sections part of my website. (ie. Drop down menu for Paragraph, H1, H2 etc does not open up, when image is selected the options for alignment and edit do not appear, cannot edit link by pressing the link button, etc.) I am not using Page Builder within the Sections, but am on another page of the site that does not use Sections. Please let me know if this makes sense or also if I need to ask the Page Builder author about it instead.