I just hunted a bug down to an SVG file, which loads but is black. Turns out this one was exported with “Internal CSS” instead of the “Inline Format” option from Illustrator. Would be nice if the gamma node could throw an error or not display the image at all. Seems like it could not load the color information. Desktop.zip (870 Bytes)
Please don’t suggest alternative Vector editing tools, sadly Adobe CS is still the industry standard.
To be honest, SVG with attributes is much more convenient to use in VVVV - you can parse it as XML and get access to a lot of parameters. In case of using CSS it would be difficult.