Testing version: iPad OS 0.1 (1648)
What were you doing: I was tapping/hold on a header
What feature did you use: I was going to toggle the folding.
What happened: the whole app crashes. In fact, I can do this over and over again. I can make the app crash on demand anytime I do this.
What did you expect to happen: a menu to pop up allowing me to change the header size or toggle the folding