Why don't I see anyone else complaining about this? All iPad simulators are completely broken in Xcode 9 beta 5. I'm seeing a nonsensical display.
Beta 5 iPad simulators broken
I ran into this yesterday. It's a real mess.
To fix my version of this issue I had to upgrade from 10.12.4 to 10.12.6 and then in Terminal
defaults write com.apple.CoreSimulator.IndigoFramebufferServices FramebufferRendererHint 2After this the simulator seems to be back to normal.
Beta 4 did not seem to have this issue until I installed Beta 5.
Try this instead if it does not work:
defaults write com.apple.CoreSimulator.IndigoFramebufferServices FramebufferRendererHint 1There's another thread in the forums which talks about black simulator screens on some hardware.