Hi again:
I finally found out what the problem was. It was oscar actually who did, some months ago [1].
The problem is at least a couple of svg files in the health/icons folder: warning.svg and stop.svg
If you look at them you'll see how different their metadata is compared to cancel.svg, for example. That format/metadata makes libpixman library crash in Windows.
I made some dirty changes in the warning.svg file to make its metadata look more alike cancel.svg and the problem was gone.
Hope it helps.
Mario