I just installed studio one 3,5 and was planning a switch from Logic, but now my Euphonix MC Mix and Transport are not working with Studio One 3.5. I have it setup as a midi device, send/receive set to port 1, and in System Preferences have added Studio One inside Eucontrol as an app, set to Mackie Control, and when I launch Studio One, the control surface faders move, and the Transport window says "Studio One", but I cannot control any functions, even as basic as fader control in the mixer, or transport control of stop/start/rewind etc...
I watched all the YouTube videos, and am an advanced user, and have been using the MC Mix and Transport with Logic X, with no issues.
Running on a Mac Pro early 2008, quad core, 16GM ram, 10.10.5 Yosemite OS
Any suggestions on a setting I need to check inside Studio One? I have gone into Configure External Devices, and see the Euphinix MC Mix, but not the Transport, but when I click anywhere in Studio One, the Transport window displays Studio One?