Hi I really hope someone can help, I've got a pie chart animating perfectly in all browsers EXCEPT IE Edge. It even works in IE10 / 11 fine. Just Edge I'm having issues with. It doesn't render anything.   If I remove the tween animation then it renders fine, so the issue can't be with the mask - it's got to be with the tween.   I've researched the forums and seen other code pens (by other devs) using the same concept that don't work in Edge edge either, here's one example: