Try out this:
sym.getSymbolElement().unbind("mousemove"); //where sym is the stage symbol
No, this don't working.
Then share your composition(zip it and upload and share the link) with us, to help you out.
This should have worked.
Seems like a bug with the Edge Animate, we will track internally.
You may import jquery to the composition, then it will work. But I am aware that including jQuery just for one such function is not worth.
We are releasing a patch for Edge Animate very soon which will have the fix.
If you don't like the above workaround, let me know, if will suggest some other workaround.
Thanks for reporting the issue.