As far as we know, the Auto Solving in HTML5 is exactly same as it was in Flash. In case you have a problem, please send us an email to email@example.com with more detailed explanations. We still have the Flash version working and we can easily compare and fix if necessary.
I think it works properly. Somehow my settings got messed up. Not sure if it's something I did, or if it happened with the migration to HTML. Anyway, the solution is that I needed both "auto solve starting points" and "auto complete" to get the behavior that I always used. I like to skip the parts where I don't need to think :-)