Ardour don't record when syncing with JACK transport
I'm trying to record some sequenced tracks by syncing Ardour and Rosegarden with JACK transport. Everything plays back in sync when I hit play, new regions are created but nothing is recorded. When I try to audition the created regions all I can hear is a short pop or click. It sound like Ardour stops recording anything to the disk just after a couple of samples.
What to do?