After having been in this industry for almost 4 decades, I have to say that this is not unusual. Typically a software application will become popular and trendy, outselling it's competition by wide margins and then, after one update, break. I've seen this with Microsoft products, Wordperfect, AV solutions, browsers, and many more categories. It's almost like the company gets to a point where they fail to test their products before releasing them and, unless the company has a near monopoly on the products line (As Microsoft currently does with Windows and Office) the product drops to last place in the race. Perhaps its a change in vision when new leadership takes over, or focus when profit margins become before quality, but it happens often.