I made the terrible mistake of updating the app without reading the reviews.. My god I have never been so disappointed in my life. First off, the trace line goes away completely when you start to move orbs; how the hell are we supposed to practice the combo now? What in the world is even the point of adding a trace line if its gonna disappear when you try to trace it? Secondly, The ui change added pretty much nothing beneficiary and actually removed the very much required reset board button. Such a bad decision. Thirdly, only "positive" thing that came out of it is that its slightly faster. But only because it calculates much less possible solutions. Those extra solutions basically got turned into additional features that now cost money. Sigh. If you wanna know how to mess up and ruin your app completely in one update, you can learn from this developer.