Recently I've encountered a few problems while working with Edge Animate.
Firstly, I was importing SVG Files into Edge that I'd created in Illustrator. This was going fine until Edge stopped responding to my request of adding more SVG files. No error message as such appeared, however the SVG files simply wouldn't upload. I had only imported 8 SVG files as well. In the end I had to open up a blank document in Edge and import the SVG files into there and then copy and paste them into the original file, and that was fine.
Another problem I had while working with these SVG files in Edge was that when I enlarged the file during the animation, it would pixcelate after slightly expanding. But the whole reason I converted these files into SVG was so they wouldn't blur or pixcelate after being enlarged.