I have to VOX tracks that are mono. The track settings show mono interleave.
 
I have them going to a stereo buss call VOX which is a stereo interleave.
 
When I pan the mono tracks, I do not get a left or right separation. I only get a lessening of audio. The VOX buss will pan left and right.
 
Any thoughts why the 2 mono tracks will not pan? I want to spread out the vox and not put them bot on the same place. 

This works as expected in 8.5 btw. Each of the mono tracks pan left and right When assigned to the VOX stereo buss. No FX are assigned to the buss or mono tracks.

Have you changed your pan laws? 

Not intentionally. Still at default.
 
According to the help file, the default should be the same as 8.5.2 and greater. I have 8.5.3 and the project works as I expect it to. X3e will not pan left or right in this project.

Thanks for your reply John.  
I opened the project in 8.5.3 and saved it. It now opens and works as expected in X3.  Really irritates me that I have to do that type of stuff to get X3 to work as expected. I am glad that I can move along with my project.
 
Little crap like this takes 20 minutes here and there which could be spent finishing up tasks in SONAR. I know no software is perfect, but it still doesn't stop me from wanting to use a product and expect it to work like it should.
 

I closed SONAR and reopened the project. The inability to pan the mono tracks is back.
 
If I choose the output as my direct sound card bypassing the VOX bus or master in the project, I can pan as expected. Reassigning the tracks back to the VOX or Master buss quiesce the ability to pan these mono tracks.
 
Really irritating now...

i sometimes get busses that go bad, no longer work as expected. delete it and make a new one. make presets of any pc or fc settings.

Any FX on the vox and/or master busses? If so, try deleting them one at a time and see if your panning comes back. Every time this has happened to me it's turned out to be a mono effect inadvertently inserted into the fx bin.

good idea about deleting the busses. Hadn't tried that. I did disable to FX on the busses and tracks too. I did not delete them though. There was no differences. 
 
Thanks for the suggestion guys. I am really frustrated right now and need to enjoy the rest of the day not fighting SONAR. :)

I decided to try and delete the busses as suggested. No change. I even deleted the plugins with same results.
 
thx for trying guys...