In beamer, I come across a little problem with the columns environment. In one slide, I always put picture on the left and text on the right. The problem is, when this slide is shown at first, the picture shows twice, i.e. two same slide. Then the text is shown fine. I understand this is not a big issue, but I am wondering is there any solution to get rid of the first one? In other words, when the slide is shown, left column appears and then right column..., not left column appears TWICE.
Apologies for my bad English. Here is a MWE:
%% Test columns
\begin{frame}\frametitle{Test frame}
\begin{columns}
\column{.5\textwidth}
A figure
\column{.5\textwidth}
\begin{itemize}
\item Item 1
\item Item 2
\end{itemize}
\end{columns}
\end{frame}