In the following simple demo I create a matter image and set it to isStatic. As soon as I call setCircle() is falls through the air. Is this not possible? I would like to have a bunch of circular static objects…
For future reference I was able to solve this by explicitly calling setIgnoreGravity() and setStatic(). I’d still like to know if this is a bug or expected behavior…
It looks like setCircle recreates the body, which destroys the existing options. You should be able to work around this by declaring the body as a static circle when you create it (you can pass in a shape, which doesn’t appear to be documented).
I don’t really work with Matter, so don’t quote me on any of this.
Thanks @Telinc1, that makes sense. I’ll check out the shape option. 
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