Comment 0 for bug 1225357

Calibre version: 1.3.0 x64
OS: Windows 8 Professional 64-bit

I have edited the xhtml and css files for the metadata jacket to include a couple of my custom columns, but when trying to polish an ePub and adding a metadata jacket it fails when I try to use a column that is for keeping series-like information (basically a "sub-series").

Without this custom column being defined it will work properly, even with other custom columns defined.