I found a rotation bug when using the REFrostedViewController component (by Xamarin Inc.) in my own app, that can be replicated easily in the sample app.
Steps to repeat:
1. Display frosted menu.
2. Select a menu option that shows a secondary view controller (e.g. Profile in the demo).
3. Display frosted menu.
4. Select a menu option that shows a main view controller (e.g. Home in the demo).
5. Now rotate the device from portrait to landscape or vice versa.
6. Repeat the first 2 steps, and the main and secondary view controllers are not displayed correctly.
Has anyone found a workaround?