I'm using 2016.04.
 
Choose any track with audio. Increase the gain to max (make sure to turn your monitors down!). Clone the track. The cloned track shows a gain of zero, but is the same volume as the original track. Now, double-click on the Gain slider for the original track (to reset the gain to zero). The volume is reduced on the original track. Now, double-click on the Gain slider for the cloned track. The Gain value shows zero but the level is the same as when first cloned. Now, move the Gain slider on the cloned track and then return it to zero. The volume is reduced.
 
Anyone else notice this? 

Confirmed, I'm seeing this behaviour too.

Yep, I've had this problem and posted about it about a month ago.

John T
Yep, I've had this problem and posted about it about a month ago.

Yes, I see that now. Did anyone ever open a ticket on this issue?

When I clone a track and then immediately play both tracks soloed together, the cloned ("identical") track's output is 8 db lower than the original track's output. Driving me crazy!

Not exactly the same problem, I know, but I suspect it's an effect of the same bug.
 

I had a similar issue with Midi tracks.
 
I got told to go read the manual, that Clone and Copy is not the same, and that the correct way is to make a new track and then copy the contents across.

Yes.same with copied. Gain gets duplicated but the nob doesn't reflect it. Moving the nob then double clicking it fixes this.

Thanks, J, I'll try the copy method, although that makes no sense to me why cloning wouldn't provide the same exact result as copying. gs, I didn't adjust the gain at all on either track, just the playback output shown on the track pane during playback was 8 db lower on the cloned track right out of the gate. Thanks!

Idk, man. My case, in project 1 I raise the gain on a track but don't normalize signals. I split clips and bounce to clips to shorten the clips for copying.
In project 2 I paste in the clips...
Now the gain nobs do not properly represent the gain (at 0)... instead, the playback is affected as if the gain is the same as it was in project 1.
 
Move the gain nob, double click it... problem gone.
 
That's the case I was describing.