Hi, I have been debugging an issue in Giada where sometimes it would get disconnected from Jack1 at start (not Jack2). During my debugging, I found that the JackSyncCallback method setup in Giada's jack_set_sync_callback uses Fl::lock which blocks the main process and Jack doesn't like that. I believe that's what the problem is (especially as after removing them I cannot reproduce it anymore)... Does anyone who knows Jack much better than I do (in fact I'm a real noob in that area) think I'm right in my investigation's finding? Thanks in advance, Aurélien