Here I've come across another possible bug. Here's the file:
http://www.petaimg.com/uploads/1226424369.svg
(Sorry micro)
There are 5 blue petals, which were originally derived from circles, and they are grouped. I can't remember how many times I've tried, but it was a lot, to apply a radial gradient to the group. Every time, as soon as I clicked the radial gradient button in the F/S dialog, the petals disappeared.
I could apply any solid color to the group, but no radial gradient. I didn't test linear gradients.
I'm thinking I know that gradients can be applied to groups, why isn't it working. So I set up a circle and a couple of rectangles, as a test. I grouped them and applied a radial gradient. As you can see in the file, the gradient is only applied to the rectangles, and not the circle. As the strokes are all still visible, clearly this problem doesn't affect strokes (and my 5 blue petals have no stroke, which is why they seem to disappear).
So I'm wondering if there is some issue with radial gradients as a fill for grouped ellipses?
Or is it something particular to this file only?
I might mention that I looked around the canvas for evidence the gradient had been applied elsewhere, or that the petals had moved, because I've come across (and reported) several instances of that type of behavior. But I don't see them anywhere.
If anyone can find either the gradient or the petals elsewhere on the canvas, you might want to add a comment to this Bug #284709.
And of course I would appreciate any comments. Especially if this is somehow expected behavior, or a result of something I did.
Thank you very much

(no rush, micro)
[edit] typo