Very reassuring to hear that the game's flow felt good, it does get a lil' hard to tell how navigable it all is to a fresh pair of eyes when you've talking about where everything is as a team nonstop for 2 weeks!
Does sound like a browser-build issue, but I'll add a sticky note somewhere to review it. It's nice to hear you went in again, though, we snuck a lot of lil' bits in that we hoped would be enticing enough for a quick "hmm, I wonder if..."-type second run.
Thanks for checking our entry out, we really appreciate hearing how folks have gotten on with it!