I checked the midi devices tab in the Audio/Midi Setup utility. Apparently someone tried to reroute the Midi connections. They are now fixed. If the Midi Timepiece does not show up, check its USB cable connections at both ends, and make sure it is turned on. You may end up with multiple icons for Midi Timepiece #1, #2, #3, etc. Using the one that is not "greyed out", reconnect the QS8.1 in and out to channel 1, and the Proteus 2000 in and out to channel 3 on the Midi Timepiece. The greyed-out icons can be selected and then deleted by using the "delete device" button.

You can test the Midi Connections by clicking on Test Setup, then clicking on the QS8.1 and Proteus 2000 icons. If their volume levels are up on the mixer, you should hear loud random chords. When you're done testing, click on the Test Setup button again.

When I checked the IAC bus icon (also in the Audio/Midi Setup), it was enabled. If its icon is not bright red, double-click it and check the "enabled" box.

we found a workaround for now