The newest fix-cm contains at the end some code to fix floats which
imho doesn't belong there. The identical code is also in fixltx2e.

\def\@xfloat #1[#2]{%
....

\ProvidesPackage{fix-cm}
          [2014/04/27 v1.1p fixes to LaTeX]

\ProvidesPackage{fixltx2e}
         
          [2014/04/27 v1.1p fixes to LaTeX]


-- 
Ulrike Fischer 
http://www.troubleshooting-tex.de/