Sluggish/Freezing GUI response soloing/muting tracks in X2 STUDIO 64 BIT

Im finding  projects in x2 Studio, which ran flawlessly in x1 studio, are encountering sluggish responsiveness when soloing or muting  tracks, and sometimes freezing the program all together.
 
When soloing tracks, the interface will freeze, and take several seconds to 'unlock' and refresh. The length of the delay/freeze seems to be commensurate with how many plugins are loaded. The delay/freeze occurs whether or not playback is engaged. This delay/freeze does not occur when soloing busses. By deleting plugins, the delay decreases.
Loading these projects also takes significantly longer than they did in x1.   
 
FWIW im running sonar x2 64 bit, win 7 64 bit, 16 gigs ram, i5-2500k, tascam fw-1082 (Asio). I still have x1 studio 64 bit installed.

Try updating drivers everywhere (sound, graphics etc) and any software that moves including firmware.
Try using Windows 7 legacy firewire driver, Windows 7 non legacy firewire driver, and manufacturers firewire drivers. Any firewire driver that works.

Also check this out and other similar posts:
http://forum.cakewalk.com/tm.aspx?m=1861804&mpage=2

Sounds very much sound driver related to me though...

Update:

I installed sonar x2 Studio 64 bit onto my portable laptop rig and the same thing is happening. A completely different hardware interface is used on my laptop rig (Presonus Firepod). Both desktop and laptop systems running win 7 64 bit.

Same freezing is occuring.

This behaviour only occurs in the 64 bit version of x2 Studio.

Can anyone verify they are able to load old projects in x2 STUDIO 64 Bit without the GUI freezing when audio tracks are muted/soloed and plugins are loaded? The more plugins that are loaded, the longer the freeze.

Ive verified this behaviour on two completely different systems.

Again, x1 Studio 64 bit works fine. As does x2 Studio 32 bit, its x2 Studio 64 bit that is the culprit.

The Transient Shaper plug-in would be my answer. It doesn't play nice on my machine at low latency either. Maybe that one has some look-ahead behavior that introduces the issue you're having?

I tried loading the same demo project and adding the same two plug-ins to the same track as in your video demo.  Trying the same thing with a variety of audio interface latency settings, from 2ms up to 100ms, I could not get the freeze as in your video.  I could even do the soloing/muting rapidly in succession (alomst double click speeds) with no issues on the audio or video sides.

Note that I am using SONAR X2 Producer x64, not Studio, though I wouldn't think that should matter in this context.  My system is far from state-of-the-art, with an Intel Core 2 Duo E6600, 4 GB of RAM, an ATI Radeon HD 2400 series graphics adapter, and Windows 7 Professional x64.  Audio interface is an E-MU 1820M (that's a PCI interface).

One thing I wonder about is if there may be some tuning parameters that are different, be it in SONAR or Windows.  While I didn't do anything special in tuning X2, I may have done some tuning in past versions of SONAR, and it's possible that may have gotten carried forward by the upgrade.  I don't think I do anything special with respect to Windows 7 tuning (I just checked my tuning settings and I am optimized for programs rather than background services in the processor section and it looks like most of the display enhancements are turned on in that section).

Rick

While it seems odd that it would be specific to Studio, since Studio and Producer have the same audio engine and user interface in general, it's certainly not impossible.  In particular, how Pro Channel enters the picture in Producer might well mean some differences in plug-in chain logic, and perhaps even some fixes that were made in the context of behavior with Pro Channel that had side effects if Pro Channel wasn't in the picture.  However, I wouldn't be so quick to jump to the conclusion that this is happening only in Studio, unless you've tried X2 Producer on your systems and verified that it does not have the same problem on the same system/configuration/setup. 

As it stands right now, if this thread is the totality of the sample size for testing, we only have two systems having the problem on Studio and one not having the problem on Producer, and there are vast differences in my system that is not having the problem and your desktop rig, and I'd guess also your laptop rig, though you don't mention much about that configuration, only that it also has a Firewire audio interface like your desktop rig.  Besides the Firewire versus PCI interface differences (not to mention different brands and drivers), and, of course, the Studio/Producer differences, there are graphics card differences (mine is pretty darn basic compared to what many people have these days, so likely does a lot less at the hardware level), CPU differences, system setup differences (probably), SONAR configuration tuning differences (perhaps), etc.

It would be helpful if some others could also test this on both Studio and Producer (odds are no one will be able to do both, at least outside of Cakewalk itself, but even having multiple attempts from different people could show whether there is indeed a consistent issue on one side of the fence and not on the other).  If it is consistent on Studio, and it is consistently not an issue on Producer, then that confirms the Studio-only theory.  But, if others find it on Producer, or others do not find it on studio, it would point to something system-specific.  That still doesn't mean there's anything wrong with your systems, but it would narrow the focus somewhat to trying to figure out what is different, but consistent between your two systems, that might be coming into play.

Rick

What other software are you running that is common across both machines? Antivirus? Third party firewall?
Tried creating a new project and copying/pasting (or importing) the tracks in from old project to new project?
Installed the new quickfix patch? (see top of this board).

Give Cake a buzz I suggest.

bump
I replicated this on a third machine, a mac that has bootcamp installed.
 
http://www.youtube.com/watch?v=wvJi5Px4M_I