Here is a screenshot:
Note that there are no input sources available.
If I log out and switch to a different account, then everything works as expected. I figure this must be a configuration problem. By the way I have recently installed a new version of the Blues Cube driver, which is probably the cause of the problem.
Log from "/Users/kaiyin/Library/Application Support/PreSonus Software/Studio One 3/Studio One 3.log":
2016/07/26 10:49:17.941 [Warning] (coreaudio): Scanning AudioDevices
2016/07/26 10:49:17.942 [Warning] (coreaudio): Skipped Built-in Microphone because it has no outputs
2016/07/26 10:49:18.207 [Warning] (Studio One 3): UCNET:Enabled UDP multicast on official port 47809 (1 sockets)
2016/07/26 10:49:18.207 [Warning] (Studio One 3): UCNET:Local UDP port bound to 65014 (1 sockets)
2016/07/26 10:49:19.027 [Warning] (coreaudio): CoreAudioDevice: Could not set outputstream usage 1852797029 outs 4
2016/07/26 10:49:19.027 [Warning] (coreaudio): CoreAudioDevice: Could set inputstream usage 1852797029 ins 4
2016/07/26 10:49:20.776 [Warning] (remoteservice): UCNET:Started listening on TCP port 50845 (1 sockets)
2016/07/26 10:49:20.778 [Warning] (remoteservice): UCNET:Server "Studio One/3.2.3.38191 OSX x64" registration reply received.
2016/07/26 10:49:22.817 [Warning] (instruments): Failed to parse JSON data "" from UC XML!
2016/07/26 10:49:22.908 [Warning] (instruments): Failed to parse JSON data "" from UC XML!
2016/07/26 10:49:22.925 [Warning] (instruments): Failed to parse JSON data "" from UC XML!
2016/07/26 10:49:24.036 [Warning] (coreaudio): CoreAudioDevice: Could not set outputstream usage 1852797029 outs 4
2016/07/26 10:49:24.036 [Warning] (coreaudio): CoreAudioDevice: Could set inputstream usage 1852797029 ins 4
