I was just over at Launchpad to see if this was a general and known issue but only found a post about the tracking function being too tricky to use:
https://bugs.launchpad.net/inkscape/+bug/169006
I'm also not 100% clear if a still have a beta or an actual 0.46 release. An Ubuntu user, I added the Gutsy repos mentioned on the Inkscape home page in an announcement dated March24, 2008, but the 0.46 version installed has a build date of March 11, 2008.
Anyway, with all of that said, Inkscape crashes when I try to use the tracking function. It appears to crash regardless of my choice for a guide: shape, calligraphy stroke, or whatever. Because of my uncertainly as to what version I actually have, I'm hesitant to make a report.
Any help would be appreciated.
Thanks,
Matt