problem on ubuntu linux at initialize pdftron

On last release of ubuntu 14.04 (32bits)
We are having a full stop of the application at calling
PDFNet.initialize(".....");
previous linux releases seems to work ok.

A full stop means no exception at all from java.
the system just crash by calling this method, and
the only feedback we have is this on console:

Fontconfig error: "/etc/fonts/conf.d/10-scale-bitmap-fonts.conf", line 70: non-double matrix element
Fontconfig error: "/etc/fonts/conf.d/10-scale-bitmap-fonts.conf", line 70: non-double matrix element
Fontconfig warning: "/etc/fonts/conf.d/10-scale-bitmap-fonts.conf", line 78: saw unknown, expected number

do you know what could be happening ?
thanks, regards
Adrian

This is a known issue on some distros, that other applications have encountered. For example Steam on Linux.
https://github.com/ValveSoftware/steam-for-linux/issues/3307

This is just a warning. If you wrap the call to PDFNet.Initialize in a try/catch you should be fine, and be able to continue.

We are looking into how to get rid of this warning for future releases.