Hello all... brand new RME user here and I could really use some help, please!  I just purchased a UFX III and a 12Mic and I'm struggling to get TotalMix to recognize the signals from the 12Mic.  For reference, here's my setup (pretty straight forward).

MacBook Pro M2 Max - Sequoia 15.3
FireFace UFX III
12Mic
Focusrite ISA428 Preamp
2 Neve Clone Preamps

Software:
I successfully loaded the DriverKit (v.4.18)
I successfully loaded RME Connector for the 12 Mic and connected to my network via ethernet... works great.
I successfully loaded DigiCheck NG, but haven't got to really use it yet.

Connections:
I connected a 15 ft. USB 3 cable from the UFX III directly to my MacBook.
The mic inputs on the UFX III show up as expected in TM.
I have the 2 Neve Clones going into the Focusrite and sending all the channels to ADAT 1 via an optical cable. All show up as expected in TM.

For the 12Mic, I have tried using 2 BNC cables with no luck. So I purchased an SFP adapter and Fiber cable ( https://www.amazon.com/dp/B0062K9Y68?re … e&th=1 and https://www.amazon.com/dp/B09K3KG7KF?re … &th=1) but still no luck.

I get a signal on the 12Mic and I can also see it in the RME Controller, but not in TotalMix.

I've also played around a lot with the word clock to make sure everything is in synch, and I think everything is good (nothing red or flashing).

I've walked through everything several times but I must be missing something. I would be extremely grateful for any advice or tips to get this going!!!