When I submitted my answer in Electrical Engineering (I hadn't registered in this site before), the app crash out. When I opened it back, my answer had disappeared. However, I was registered to this site automatically. I use iPad 2, the app is up-to-dated.
I'll be building this out momentarily. The long and the short of it is that we were doing pseudo-abstract methods in Objective-C and when I refactored the question editor I accidentally deleted an important method from the answer editor and the app crashed. 😞 100% my fault. Sorry about that.
Also, why on earth wasn't I saving the draft as soon as you hit the "Submit" button? I'll be pushing out some code to fix that too.