Change BitmapImage source on a socket event

Hello,
I have a BitmapImage and I would like to change its source at runtime.
<BitmapImage source="img1.png" id="img" smooth="true" smoothingQuality="high"
       transformX="102" transformY="162">
    <filters>
        <DropShadowFilter distance="-1" angle="45"/>
    </filters>
</BitmapImage>
In the script part, I change its source so it points to another image.
img.source = "img2.png";
If the previous assignment is inside the mouseDown handler, it works perfectly. But, if I place it in a method that is triggered when data is received through a socket, the source remains unchanged.
What I've found out, so far, is: I've added an event listener for the type "sourceChanged" and this is actually triggered, but when I inspect the source, it points to the old image.
Thanks!

Hi,
It turned out to be a bug in my code, totally unrelated to sockets or anything else.
Not sure how to proceed...should I close this post?

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