I see it stuck on my system as well. Have you confirmed when you load the same project with 216 it works fine? Try downgrading and exporting again. Maybe it is a bug you found, try on the bug forum.
No, I didn't, but I already updated the javascript (NWs?) file for beta 222. I really don't feel like rolling back.
But I might have to do so.
And here's how it's supposed to look (this was made using 216 and Free version/before I upgraded):
http://gambler-snake-26122.bitballoon.com