Getting midi feedback into open stage control to sync volume fader with the daw

Hi @jean-emmanuel

I am struggling to figure out what I'm doing wrong to get Cubase to send status back to OSC and for the corresponding button in OSC to reflect that Cubase function's status. (as I move from track to track for example.) I've read through several different posts about it, but I'm not having any luck. Would love your insights if you have a moment.

Andy