When I create a long beamer frame which is automatically splitted into slides by using allowframebreaks option, it has a little bigger vertical margin for the first slide. I would like to make it more consistent with the rest of the frame. I cannot find the reason of this behavior and a way to fix it.
\documentclass{beamer}
\begin{document}
\begin{frame}[t,allowframebreaks]
A\\
A\\
A\\
A\\
A\\
A\\
A\\
A\\
A\\
A\\
A\\
A\\
A\\
A\\
A\\
A\\
A\\
A\\
A\\
A\\
A\\
A\\
A\\
A\\
A\\
A\\
A\\
A\\
A\\
A\\
A\\
A\\
A\\
A\\
A\\
A\\
A\\
A\\
A\\
A\\
A\\
A\\
A\\
A\\
A\\
A\\
A\\
A\\
A\\
A\\
A\\
A\\
A\\
A\\
\end{frame}
\end{document}
printbibliographythat was the original command used when I've noticed it.allowframebreaksoption to take effect, I don't see the vertical offset you describe. There might be a pixel or two, or maybe none at all, but certainly not the nearly 50% of the baseline height you show with the backslashes.\\with double newlines, with\pars and with regular whitespaces) – the result is always the same, i.e. as in the screenshoot comparison above. I suppose that in my caseallowframebreaksseems to redefine some dimensions when switching to second slide (I use 64-bit MiKTeX).