rsvg-convert does not correctly convert graduated text

[MarkS]

I have an SVG file with some graduated text in it. When run through rsvg-convert to generate a PNG file for inclusion in a mobile application the text is replaced with a graduated rectangle with no text.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: librsvg2-bin 2.36.1-0ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-24.38-generic 3.2.16
Uname: Linux 3.2.0-24-generic i686
ApportVersion: 2.0.1-0ubuntu7
Architecture: i386
Date: Fri May 11 09:37:08 2012
ProcEnviron:
 LANGUAGE=en_GB:en
 TERM=xterm
 PATH=(custom, user)
 LANG=en_GB.UTF-8
 SHELL=/bin/bash
SourcePackage: librsvg
UpgradeStatus: Upgraded to precise on 2012-03-02 (69 days ago)

[MarkS (mark-marksyms)]

Should have said. File was created in InkScape and displays and edits correctly in there. Can't use InkScape's PNG export as multiple sizes are required and this would quickly become very tedious so a scriptable convert of all the graphics assets into the required sizes is required.