The new fixltx2e breaks the figure* enviroment
\RequirePackage{fixltx2e}
\documentclass[twocolumn]{article}
\begin{document}
\begin{figure*}
x
\end{figure*}
\end{document}
gives
)
(\end occurred when \iftrue on line 18 was incomplete)
Package: fixltx2e 2014/05/13 v1.1q fixes to LaTeX
--
Ulrike Fischer
http://www.troubleshooting-tex.de/