[Bug] S2400 USB Bricks Mac Pro Bluetooth

S2400 Bug Reports
1

I have a weird one that I’ve gotten hints of in the past but I finally sat down and debugged:

If the S2400 is plugged into my computer via USB-B, the bluetooth on my Mac Pro crashes rendering my wireless mouse and keyboard dead.
I’ve tried a variety of USB-B cables with the same results. I have a bunch of other USB hardware plugged into my computer and it’s never had a problem. It’s only when I plug in the S2400 that the bluetooth goes haywire.

The computer is a 2019 Mac Pro with hella cores and RAM and everything is up to date with the latest drivers and such.

In the past, I’ve noticed that I can have >10 USB MIDI devices plugged into my computer in sync and shooting midi around like champs. When I turn on the S2400, everything gets out of sync or even just stops.

I don’t have access to a HW USB sniffer at the moment or I’d see what’s going on with the traffic between the S2400 and my computer.

Any suggestions for things to try?

2

Tried some more stuff this morning:

MIDI over USB B just seems borked. I can get Ito MSC mode over USB B. The unit still enumerates as a sound card and sends/receives audio over USB B from the computer.
I deleted the .set file to try to reinitialize the unit and the same thing keeps happening.

In Logic, I can see the S2400 and assign MIDI clock out to synchronize it, but the S2400 doesn’t receive the clock or start stop.
When I plug the S2400 into the USB host port on an iConnectivity Audio4c, MIDI works as expected and I can start/stop the unit and synchronize it.

Something fishy with the USB enumeration on the Mac.