Thanks for persisting. 
This is so odd but I'm learning lots of stuff in the meantime. The audio engine has no affect in this case as it changes color back when I hit play. (is that normal?)
Thanks for the visuals. Mine all seem fine by all those notes.
I killed all busses and turned off all FX and deleted all envelopes, restarted several times.
Nothing changes this.
So odd that ALL trax play in this area seeing as I only have the one track on the time line now.
I have a work-around on this, so I'm going to bail on it.
(the work around is to move all the trax along the time line to get beyond the infected areas.)

Yes the audio engine must be lit blue when it is active,so that is normal. Would be interesting to see a video and see the mixer what is going on there. you got the expanded Sonar X1, anything to do with the Pro-channel ! Anyways i do not know what is causing this,maybe others have a solution. Would be bad if the same thing happens on a large project, and you do not know what causing it !

Ah gee whiz... we know what is causing it.

It was the look ahead latency compensation, other wise known a Plugin Delay Compensation or PDC getting baked into the project when the Perfect Space was used.

When the instance of Perfect Space was removed the Plugin Delay compensation didn't fully release and now you have a weird timing and trigger glitch going on.

The very best thing you can do is send that corrupt project to Noel and let him dig in to the internals so he can see what's up.




This issue has been going on for 10 years plus. It's just part of the SONAR experience.

I use the work around I recommended above because you have to avoid the problem rather than hope to fix it.

I figure that the PDC operation is some of the most complicated aspect of SONAR, and I appreciate it when it works because frankly a DAW without functional PDC is no fun to use... it would suck to not have PDC... so this one little issue is something I'm willing to work around.

As I say, I sure wish Cakewalk would spend more resources on this type of stuff than making new add-on gadgets to give away for 1/2 price.



The PDC stuff is important.



Oh BTW, the easiest way to turn the audio engine on and off is too simply restart SONAR. If that doesn't make the problem go away... then you know you got a problem. Simples.


all the best,
mike

" mike_mccue ". Strange that just certain clips is affected and not the whole track then. guess problem is solved then, more or less. Sorry i am just learning sonar and is not quite familiar with all thing's yet :). I thought it had something to do with what i have experienced before. Yes Sonar has it weakness, i agree with you, they need to spend more time fixing stuff rather than adding new features. A stable DAW is most important. Hope they will add a update for X1 as well for X2.

I want to thank you all for chipping in on this.
The description about PDC getting baked into the project when the Perfect Space was used sounds right. Nothing is going to make this go away.
Because there is a solution (moving the clips further down the time line) and because this is not for money, I'm fine with it. 
Obviously I won't be using Perfect Space again tho Scott G indicates it is at the top of the line as far as included reverbs. (The reason I gave it a try)

Re: "send that corrupt project to Noel". 
I trust that would be Cakewalk?
Any instruction on how to get all the relevant files sent?
I assume the project file, but aren't there other files too? Audio & wave graphics?
These might be large. I assume an email attachment would not work.

The Cakewalk problem reporter system has the capacity to accept the .cwp project files.

Don't give up on Perfect Space. It's great. There are lots of real nice plugins that kick in the PDC and for the most part it works great if you don't yank one of those plugins out of your project.

I think a lot of times when I see people running into stability issues that they are pushing the limits of the PDC without considering it.

Consider how complicated it must be to run several different plugins in a project, each having different and often times fluctuating amounts of PDC, and have everything end up in sync at the output.

The PDC is like an actively managed buffer that reacts to a myriad of scenarios and creates all the changing timing offsets for each event start so as to make the output seem like it's all in real time sync.
 

best regards,
mike 

Hi there
Q/ did you by any chance insert the perfect space reverb whilst playing the project?
This can cause glitches in Sonar.

Now, just an idea;
If you do the proposed workaround solution of moving all your track along the timeline, out of the way of the offending section of measures, you could try 'selecting' from 'start' to 2 measures before the new start position, and then deleting all measures.
This may get rid of the problem in your project.

Thanks Mike. I'll check out the Cakewalk problem reporter system
Assuming "yanking the plug" caused it, what is the alternative?
How would you advise using/removing the more complex plugs?
Leave them installed but just turn them off if they cause problems?
It would be nice to have a list of which ones were voted most likely to cause problems.

Good idea Wildman. I'll give that a try after sending it to CW.
At this point I simply set up a loop around the song.
I can't recall how I installed the plug but yes, I often install plugs and prochannel presets while playing.
Now I can see how that might cause this time shifting thing due to PDC confusion.

Would this be just for the more sophisticated plugs? 
Or would you advise to always stop the playback before changes?

M_Glenn_M


Good idea Wildman. I'll give that a try after sending it to CW.
At this point I simply set up a loop around the song.
I can't recall how I installed the plug but yes, I often install plugs and prochannel presets while playing.
Now I can see how that might cause this time shifting thing due to PDC confusion.

Would this be just for the more sophisticated plugs? 
Or would you advise to always stop the playback before changes?

Well I have found that inserting any kind of effect or plug while playing causes major problems!
I always stop playback when inserting plugs or effects now, whatever kind they are.
I would interested to know if the 'delete bad measures' thing works. I imagine it will work.