Upgrading to 10.12 would necessitate that I upgrade to Cubase 9 which is $200 expense. Technically, I only need to upgrade to Cubase 8.5 for sierra compatibility but, of course, it is no longer available for sale.
It's something I'll have to do eventually but I was hoping to postpone it. If I was sure this would fix the problem, I might consider it but given that every other app I have tried works correctly, I'm not sure it is reasonable to suspect the FTDI drivers.
I appreciate your help. Let me ask your one more question while I still have you on the line...When I initially open up grid studies all the OSC messages seem to go to /monome/* and everything works correctly.
When I then open up sum and select my grid, I see that sum is trying to communicate under /manager/*. If I then reopen up the grid-howto patch, it no longer works. BUT if then change all mentions of '/monome/*' to '/manager/*', it suddenly is able to talk to my grid again. Is this normal? Why was the root of the OSC address changed from 'monome' to 'manager' when I opened up sum?
Again thanks for your help.