The "+" that Kalle is referring to will be beside the words "volume"and "Pan" in the track header area. If you see them there you are in offset mode that can be exited by pressing "O".

As others have said check that the automation is actually present. The easiest way to select the edit filter is to press "T" with the buss "in focus" and use the HUD that pops up. With busses you'll only see the options "None" and "Automation". Choose automation and then the envelope you want to see which if present will have a colour beside it.

Also make sure that the Buss "Read" button is enabled. In X2 it will be blue. If it has a diagonal stripe through it you have the "Global Read" bypassed. Change that in the "Mix" module of the control bar, it should be white when enabled.

That should sort it out for you.

djayers1


The Read (R - white or gray, not blue) is activated, I use the mouse to move the sliders while playing the track. I found the track Edit Filter in Clips>Automation>Volume, but do not see where this would be while in the Bus window. Once again, I have been able to mix the same way I'm trying now with no problem, and as far as I know, I have not changed any settings - it just quit responding.

That is the enable/bypass read automation it should be white and the “R” on the buss should be blue.

When I type "T" on the Buss in the side window beside the Track pane, all I get is a little window with the Smart Tools (*, arrow, cross, etc.) I don't see any choice for "None" and "Automation".

make sure you don't have automation write mode set to overwrite.  this is in the track inspector.  select the bus you're using, open track inspector and click on the "bus" tab.  overwrite will start with the initial automation value and hold that value as the track plays back unless you modify it manually.  
a good practice when using automation writing is to globally turn off all write parameters when you're done then playback and draw in adjustments manually.

FastBikerBoy


The "+" that Kalle is referring to will be beside the words "volume"and "Pan" in the track header area. If you see them there you are in offset mode that can be exited by pressing "O". 

the pluses only show up in track headers, not bus headers. what happens there is the automation indicator that looks like a N disappears but no "+" is added to the parameter name.

djayers1


When I type "T" on the Buss in the side window beside the Track pane, all I get is a little window with the Smart Tools (*, arrow, cross, etc.) I don't see any choice for "None" and "Automation".

That's the one -  it's called the HUD. The selector is beneath the tools,to the lower left. There should be box to click on that produces a drop down. It probably reads "None" at the moment.

swamptooth

FastBikerBoy


The "+" that Kalle is referring to will be beside the words "volume"and "Pan" in the track header area. If you see them there you are in offset mode that can be exited by pressing "O". 

the pluses only show up in track headers, not bus headers. what happens there is the automation indicator that looks like a N disappears but no "+" is added to the parameter name.

Yeah good point. The indicator in the mix module is the easiest way to tell. When it's blue overwrite is on.

Thanks. It is (and has been) set to "none"

Checked, and it isn't (hasn't been) set to overwrite. Also, I just noticed that when I temporarily turned overwrite on (in the Buss tab), the Write (W) button had a diagonal line through it, and was just red on top. Isn't that a good way to know if it's active? I still haven't seen the R turn "blue".

The "Read" button in the Buss header should look like this.....
 

 
 
The same button in the mix module like this.......... (ignore the solo button)
 

 
If Automation write is active they will be coloured red (or part red) depending on automation write state.