Stereo Interleave Button on Master Bus stuck to Stereo

First off:
Sonar X2 Studio
Win 7 Home Premium 64bit
 
I am mixing a project and all of a sudden today the Stereo Interleave Button on the Master Bus is stuck on Stereo.  (yes I have rebooted) All other tracks are set to Mono and the interleave buttons work.  I like to switch back and forth from Stereo to Mono as I mix and I cannot figure out if there is some dependency in my project that is forcing the Master Bus to stereo.    I have been reviewing the help and the forums and haven't found anything related to this.  
I save my mixes as new files each day so if I make a mistake or if I want to compare progress I can open old versions.  I have checked previous versions of the project and the last 2 days have this problem.  Older versions of the project do not.  So something I have done in the last two days has created this problem.  I would prefer to not lose 2 days worth of work.  
Does anyone know of anything that would be forcing the master bus to Stereo?

bellownc
...the Stereo Interleave Button on the Master Bus is stuck on Stereo...
...Does anyone know of anything that would be forcing the master bus to Stereo?

Maybe a stereo effect applied to the Master bus is preventing it being switched to mono. I think I once saw this happen, but I can't recall which plugin was causing it.
 
One solution would be to add an extra bus routed to the audio device and route the current master bus to it. Maybe name it "Master" and rename the current master to "Pre-Master" or something similar.

The known bug I'm aware of is (I think it is Direct X only):
http://forum.cakewalk.com/Possible-MonoStereo-bug-for-test-Direct-X-only-m2956642.aspx
 
Check post #4 (as some of this was fixed in X3E, assuming you have it installed, if not you should).
 
Thanks....

DirectX isn't even being supported any more by several other DAWs, so don't expect much development to alter this issue.
 
A related issue is if you have a mono track and something like the Tempo Delay in the FX bin. When you try to render something like Melodyne, you won't be allowed to because the mono track is seeing a stereo effect. I just move the effect out of the bin, render, and move it back in again.
 
I really think the Channel Tools solution is the simplest...one click for mono, one click for stereo.

Anderton
DirectX isn't even being supported any more by several other DAWs, so don't expect much development to alter this issue.

 
I'm not 100% sure it's DirectX only, but that was the quickest way to reproduce the issue (full details on that thread anyway #4). I wasn't going to point this to other types of plugins because I hadn't fully tested it.
 
As X3E just gave us half a fix for the issue (well I guess you could argue it could be two issues reported as one) I would hope it would end up fully fixed. BTW it "SONAR supports both VST and DirectX effect and instrument plug-ins" so I take that quite literally :)
 
Anyway apols I may be going off topic here...

Well as per thread, if DirectX plugin insists on Stereo I would expect the interleave button to be greyed out and stuck in stereo (so we are not fooled into thinking it is in mono if it is placed in mono, as is presently the case), or (better still) just make darn sure the output is mono.

I should be able to quickly glance across the channels of a console and not have to worry about whether Sonar is lying to me about stereo/mono outputs.

CakeAlexS
if DirectX plugin insists on Stereo I would expect the interleave button to be greyed out and stuck in stereo (so we are not fooled into thinking it is in mono if it is placed in mono, as is presently the case)

 
Is that really "presently the case"? In X3 if the interleave button is set to mono, it shows mono and the audio is mono. If the interleave button is stereo, it shows stereo and the audio is stereo. I have yet to find a plug-in, DirectX or otherwise, that defeats that. (There is the POD Farm weirdness, but that has nothing to do with the OP.)

I should be able to quickly glance across the channels of a console and not have to worry about whether Sonar is lying to me about stereo/mono outputs.

If you place the old DirectX Compressor/Gate in the Master bus, the stereo interleave works perfectly both functionally and in terms of the graphic representation. Same is true in tracks. Perhaps the issue is that the OP is using X2 instead of X3. I can't reproduce the OP's issue, so if this indeed an issue in X3, perhaos you can furnish the steps needed to reproduce.
 
In any event I doubt Cakewalk would take the time to write a patch for X2 that grays out the interleave button to accommodate certain anomalous situations involving DirectX plug-ins. X2 is from a different time and a different ownership.

I'm confused. Is that the problem the OP is describing? I did what he did, i.e., put the Compressor/Gate in the master bus, and it wasn't stuck in stereo. I could set the interleave to mono or stereo, and the track played back as the interleave button indicated. My understanding was that he couldn't get out of stereo, but I didn't have any problem doing that. So I can't reproduce his problem, and the steps you referenced don't seem to reproduce the problem he's experiencing, either.

And to be clear at my end, this appears related to the the first post (#1) in the thread I quoted. So you might conclude the behaviour in X2 had not changed with any of the Sonar releases afterwards until the X3E patch was introduced.
 
Since the X3E patch was introduced the behaviour changed (see post #4 of that same thread for current behaviour).
 
Just to emphasise again the OP was using Sonar X2.

Curious why you would want the Master in Mono.  Not many people make mono products anymore.