
Welcome to InkscapeForum!
I have to admit that I'm not sure how one would know exactly which dev version to get. Even though they are called "nightly" I'm not sure if they realistically happen every night. Some are fairly stable, and others are frought with "issues". Because after all, it is the version that developers use to "work out the kinks".
Anyway, you have to expect problems when using a development version. Maybe someone else can explain which version you should use, if you feel like you want to use a dev version.
I did try exporting from my 0.48.4 version, and assuming you meant export to PNG, everything works perfectly.
If you want to investigate further, you could search the bug tracker at Launchpad (
https://launchpad.net/inkscape)
