Is this a known bug? 1. Create a multichannel EXS 24. 2. Route some drum signal to an aux. Example: Snare drum, to add reverb. 3. Add that aux to the arrange window. This is to get it into the track mixer, for convenience. When performing stage 3, the sound routed to aux will be muted in the matrix editor. I get no audio when adding new notes corresponding to that particuilar output. Also, the reverb tail on the aux track will be muted immidiately when sequencer is stopped. Both this things work before stage 3. However, if I play the sound via a keyboard (sequencer can be stopped) I will first hear some rubbish sound (like a cache being flushed) and then everything works nicely again. I can hear the audio when adding notes in matrix editor and the reverb tail is not cut off. Not a major problem but definitely a bug. Mac OS 10.3.9 Logic 7.1 MOTU Traveler