If you use WebKit on linux (gtk, qt) SVG-animation as well as <use>-element in SVG don't work correctly. It's a problem of localization and must not be bounded to SVG (have only found problems in SVG so far). See https://bugs.webkit.org/show_bug.cgi?id=18985 for the <use>-element problems.
How to reproduce:
The problem is only present on non-english-speaking areas, where floatingpoint-numbers are seperated with a comma instead of a point.
export LANG="de_DE.UTF-8" (localization-packages have to be installed) and look at the following pages:
* http://www.w3.org/Graphics/SVG/Test/20061213/htmlEmbedHarness/full-animate-elem-22-b.html (for animation)
* http://www.w3.org/Graphics/SVG/Test/20061213/htmlEmbedHarness/full-pservers-grad-13-b.html (for <use>-element)
with export LANG="en_US.UTF-8" animation and <use>-element work.
*** This bug has been marked as a duplicate of 18985 ***