With 2.200, we are having a few reports of black screen when first opening MDP2 on an iPad Air 2 or the original iPad pro.
Sometimes the black screen will go to the home screen without action, some times you may have to tap the screen, or go to the home screen then back to the app. Appears the black screen is temporary and does not recur until the iPad is restarted.
If you are seeing these symptoms please let us know at support [AT] mididesigner.com.
We are working on an update.
Thank you for your patience.