Using lyx-2.2.3; KOMA-Script book class. The environment sequence at the beginning of the document is:
Extratitle Title Author frontmatter ToC Standard (\chapter*{Preface}) Chapter (1) Now when I try to preview the document I get this error; LyX: Error in latex paragraphs: You are using at least one layout (Title) intended for the title, after using non-title layouts. This could lead to missing or incorrect output. Error log shows: ! LaTeX Error: No \title given. I'm not seeing what changed from before when the preview worked. Rich