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When using the Beamer command visible within an itemize environment, I noticed that sometimes the command makes the bullets disappear as well. In the example provided below, the bullet point on the fourth line is hidden along with the text next to it. I didn't expect this - how can I change this?

\documentclass{beamer}
\mode<presentation>{%
  \setbeamercovered{transparent}
}
\begin{document}
  \begin{frame}
    \begin{itemize}
      \item first
      \pause
      \item second
      \pause
      \item \only<3->{third} word jumping around -- not nice
      \pause
      \item \visible<4->{fourth} entry makes the bullet disappear -- why?
      \pause
      \item Does not happen unless the \visible<5->{appearing} word is at the beginning of the line. 
    \end{itemize}
  \end{frame}
\end{document}
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1 Answer 1

up vote 8 down vote accepted

It might be a bug. As a workaround, use \item \leavevmode \visible<4->{...}, as in:

\documentclass{beamer}
\mode<presentation>{%
  \setbeamercovered{transparent}
}
\begin{document}
  \begin{frame}
    \begin{itemize}
      \item first
      \pause
      \item second
      \pause
      \item \only<3->{third} word jumping around -- not nice
      \pause
      \item \leavevmode \visible<4->{fourth} entry makes the bullet disappear -- why?
      \pause
      \item Does not happen unless the \visible<5->{appearing} word is at the beginning of the line. 
    \end{itemize}
  \end{frame}
\end{document}

How does it work? Well, the \visible is not at the beginning of the line anymore, there's \leavevmode in front of it :-)

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1  
similarly \hspace{0pt} etc. anything cools down TeX at the start of the line works. In the third scan it doesn't see an \item –  percusse Feb 14 at 10:19
    
@percusse Seems that it's almost the same: \leavevmode: macro:->\unhbox \voidb@x :) –  tohecz Feb 14 at 11:02

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