The restate key fails if used with beamer. The restatable environment works fine. Something to do with the way beamer grabs the contents of a frame, I assume.
\documentclass{beamer}
\setbeamertemplate{theorems}[numbered]
\usepackage{thmtools}
\declaretheorem{MyTheorem}
\begin{document}
\begin{frame}%[fragile] % "fragile" does not fix it
\begin{MyTheorem}[restate=foo]
text
\end{MyTheorem}
%% This works fine.
%\begin{restatable}{MyTheorem}{foo}
%text
%\end{restatable}
\foo*
\end{frame}
\end{document}
The
restatekey fails if used with beamer. Therestatableenvironment works fine. Something to do with the way beamer grabs the contents of a frame, I assume.