Hi guys,
It's very possible that the app has fault, however when I was having my problems we narrowed it down to the fact that I was simply putting too much weight on the nose gear. So, for example, if I landed a bit overspeed and slammed the nose gear down, the problem would happen. Since then I've made a lot of corrections in regards to approach speeds.
There could be a problem with the app, but check first and make sure you're not putting too much weight forward. Also, I'm not sure if the latest update has fixed this. So if it has, feel free to post in on here.
Brandon-