We have seen this bug in certain rare cases and are actively working on a fix. In the meantime, if you are experiencing a crash, here are some workarounds to the Setup Wizard:

1. If you are trying to change MIDI inputs: In the Keyboard window, find the dropdown MIDI input list (below the Exit and Global Edit buttons) and choose your MIDI input.

2. If you are trying to toggle hotkeys: In the Keyboard window, open the Edit Drawer (outward facing arrows on the top right hand corner of the window) to see your hotkey assigments.

3. If you are trying to change audio output settings: Select Preferences (located in the Tools Menu on Windows, or the RMS Keyboards menu on Mac) and under the Audio tab, choose your selected audio output device.