When I add slides with references at the end of a beamer presentation, the first slide always starts one line further down than the subsequent slides. Why, and how I can prevent it?
\documentclass{beamer}
\usepackage{biblatex}
\addbibresource{biblatex-examples.bib}
\begin{document}
\begin{frame}
\nocite{*}
\end{frame}
\begin{frame}[t, allowframebreaks]
\frametitle{References}
\printbibliography
\end{frame}
\end{document}


\printbibliographystarts a list and thus gets\topsepbefore, you can try the ad hoc\vspace{-\topsep}\printbibliography. But maybe there is something more elegant... – moewe Oct 31 '15 at 14:49