OK, this is a really strange issue. In Microsoft Internet Explorer and Microsoft Edge the Path.Fill property is ignored on load. Only a resize causes the path to fill. I took a video of this behavior, in order to demostrate
YOUTUBE VIDEO LINK: https://www.youtube.com/upload_thumbnai ... 4885433814
Notice how the Path loads in IE and Edge without the Green Path.Fill property, but loads in Chrome and Simulator with the Green Fill.
As soon as you begin to resize the IE\Edge window, the Green Path.Fill appears.
Here is a copy of my sample project: