your system may need further updates chipset drivers video drivers and I would chk your hard disks S.M.A.R.T

That is possible, but everything worked fine with X1.  I am noticing that the crashes always occur while trying to play back or render a V-Vocal clip.  On that last playback, I had a v-vocal clip that was not rendered right where it bailed.  I guess the answer is to render all of my v-vocal clips and then save immediately.

acatalyst


No, these are actual hangs or loss of functionality where I either have to restart Sonar, or the project closes by hanging or crashing.  I have taken to using CTRL-S a lot, since I sometimes only get in a few changes before it bails on me.

After bouncing it freeze here too for a second. You think SONAR X2 is ready but it isn't.
Happen with Kontakt 5, Omnisphere, Stylus RMX and other plugins like Melodyne etc...
You can notice after bounce if you try to click with the mouse on the arrange window during that small time nothing happen. Takes a extra second after "bounce", then "boom" you are back and you can continue work and edit with the mouse.
Never crash though...

UPDATE:  Since I was having problems with X2, I decided to go back to X1, and experienced the same issue.   MOTU released new audio drivers a month or 2 ago, so after I updated the drivers, seems like everything is working as expected again.  Thanks to everyone for your advice.