I have enabled the automated mute on a track and tried to record clicking to turn on and off the mute. during playback I watch the automated mute envelope and nodes get created when I click but when playback stops all the nodes fall to the bottom and are off.
 
I did a google search and see that others have had problems but thought it was related to a controller. I have no controller so that is not what is causing me grief. I also see that other say it is working fine.
 
I have tried this in console view as well as track view with the same result.
 
I kept banging on it but I was getting nowhere. Finally I deleted all the nodes to start over and changed the curve type to Jump.
 
Then I tried again.
 
This time my clicks were recorded same as before but each click behaved as they should.
 
I was going to cancel this post but I thought that it might help someone else who was having the same problem.
 
 
 

Tom Riggs
I was going to cancel this post but I thought that it might help someone else who was having the same problem.

Never delete a helpful post! This may be a bug, have you alerted the Bakers?

I have always resorted to a volume envelope to do this as automated mute wouldn't work.
I will try what you have done.
 
Thanks.

I searched and found others complaining about this going back several years. No solutions were to be found and some claimed that it worked just fine for them.

If others confirm that it does not work when the curve type is not "jump" I will report. For all I know this is how it's intended to work and the documentation is incomplete.

Good looking out I was trying to utilize the mute function automation style the other day and had to do a work around - whoohoo will give it another try...
 

In order for it to work you MUST right-click the Mute icon and select "Switch to Automated Mute"

Thanks Bristol but I already did that and it recorded nodes but they would fall to the bottom as soon at the recording stopped and were useless.
 
As I said that final solution was to change the curve type of the automation lane. Then the automated mute recorded correctly.
 
If you can get it to work correctly using a mouse without changing the curve type that would be good to know. 

Yep, no problem for me.  Been using it since Sonar 6 PE without issue.

Here is a short video of what I see when I try to use automated mute.
https://drive.google.com/file/d/0B4rqfTwu09IQQUowNVhqaXNJcjQ/view?usp=sharing
 
 

Not sure what the video is telling me to be honest.
 
But, you've got the track armed for recording, what happens if you switch it off?
 
Also, you do need to right click the Mute control and "Enable Write Automation" to record your mutes, then disable it when you've finished and make sure Read Automation is enabled.