I wonder if you go into Preferences>File>VST Settings and uncheck "Replace VST2 Plugins when opening projects" it might solve the problem.

Hmmmmmmmm. Another project that uses a mear equal amount of plugs opens and plays just fine.
 
I'm going to have to either 
a)wait and see if CW finds something in the MiniDump
b)keep trying to open in safe mode slowly layering what plugs I load in that project.

This "fix" has been suggested a lot in the last couple of days, but it's worth repeating....
 
Did you rescan your plugins after the upgrade?

Mod Bod
I wonder if you go into Preferences>File>VST Settings and uncheck "Replace VST2 Plugins when opening projects" it might solve the problem.

JonD
This "fix" has been suggested a lot in the last couple of days, but it's worth repeating....
 
Did you rescan your plugins after the upgrade?

Trying both of those right now. BRB

@Mod & JonD - Nope no change. SOANR crashes.

OK, I think I have it sussed.
 
It's UAD plugs. If I exclude them while loading in safe mode the project does NOT crash SONAR nor do I get motor boating if I open a VST or do an edit.
 
I had no reason (until now) to go to Rev 7 from UAD but I will load that later tonight and see if it truly solves the problem.
 

I'd contact CW tech support on the phone. You might get an immediate response.

leebut
I'd contact CW tech support on the phone. You might get an immediate response.

See post 16.

Thanks for the update, Bapu.  I'm gonna flag my UAD plugs temporarily in existing X2 projects until we get any further information.

Some questions.
- Does it immediately crash when you load the project or do you hear the noise with no crash.
- Please list the CWBRN number. (BTW in general when talking about an issue that is logged always reference the bug number, otherwise we have no easy way of correlating it with this thread)
- Do an experiment - copy just the project file to a new folder and load that file (with missing audio) in X3. If the crash still occurs, attach the file to your bug report.
- what are specific versions and names of the UAD plugins involved? What specific UAD hardware do you have and what version? 
- SONAR X64 or X86,
- 64 bit OS or 32 bit
- UAD hardware version, driver version etc
- Try and isolate if it is a single UAD plugin causing the crash. i.e. skip loading all but one UAD plugin and retry