These problems are horrible and Arturia seem to respond way too slowly...
I have spent few years with this instrument. First with desktop and now both desktop and keyboard. And I have had quite a lot of issues too. But I must say I got good service from Arturia and that's why I am still very happy with Origin in general. Only thing which really bothers me at the moment is the erratic behavior of the big knob; my Origin KB is just few months old and this knob seem to have more and more problems (it jumps here and there especially if you move it fast).
Other thing I am worried, and I am hopefully wrong, is that Origin is already or becoming discontinued product. If so, then there's very little development to wait from Arturia. We've already seen that this development has been getting slower and slower; Arturia has obviously put their resources elsewhere. It's sad, because there's still so much potential left to be realized. One thing I still really hope they will fix ASAP: Origin KB's midi functionality (read my other thread). If you have spent 2500euros or more to this instrument, I think you're expected to have a keyboard which can send and respond to MIDI without problems. 100-200euros price level instruments can do that without issues. In one word, if you sell a MIDI instrument with all those ins/outs/thrus, your customers have right to expect that these work, right?