Hi Daniel,
\title{My awesome book}
> \author{Daniel Cerqueira S.}
> \date{August 2024}
>
> (...)
>Do you have \maketitle in your document? Without it, metadata is not saved. If you have \maketitle, could you make a MWE that shows this error? It can be caused by the document class or some package. Best regards, Michal
