Key output not rendering properly

I originally posted this in a topic about decklink drivers ( but I have since discovered that the problem exists even when using the screen consumer.

The flash renderer seems to square off the edges on the key output. We have nice curved items in a lower third for example, but the key output is a rectangle covering that shape. I think it might cover every item in that layer from flash (layer from flash, not video in caspar server) as some items build with multiple flash layers end up with multiple rectangles on the output. The Fill is fine, it is just the key. The .ft file is fine as I have other caspar machines that play the file fine, so it is just an issue with one of our machines (but happens to be the one out on a job...)

Here is the output on screen consumer:
And this is on another machine showing what the key should look like: