I just purchased a 2018 Macbook Pro. I installed Studio One 4.5 on it and it seems to be running fine. But I'm not receiving any signal from my M Audio Mobilpre interface to the Studio One inputs. Im getting a full signal recognition from the unit, and I've checked my routing over and over in the I/O menu in Studio One, and It's all correct. Studio One is definitely using the M Audio Mobilpre as the playback and recording device. When I plug my headphones into it the sound comes through. And if I pull up Amplitube 4 from IK Multimedia I can play my bass through the M Audio and it works fine. Not sure what Im missing. Ran through the tutorials and still can't get it to work. Any help in this matter would be greatly appreciated.