[lectrohowie]

I'm experiencing the exact same thing only intermittently. Sometimes it works as expected and most of the time not. I also checked the aforementioned settings (it was fine in PT10) to be sure, but everything checks out. I'm actually beginning to think that it's an issue with the 003. Seems to me that the switching actually must take place there, not in Pro Tools. 003 is quite old. I don't think it's an actual physical relay that does the switching, but some chip that might be failing is a possibility.

On the other hand, I'm also looking at it as a possible plus. Because I use an analog mixer as a front end, I can send a mic signal direct from an input channel for direct, low latency monitoring and then play back the track during a punch in and have the track mute as soon as I hit record, thereby avoiding double monitoring the signal.