Hi
I have noted that looking at several posts, I have found that people running successfully mainly have windows 7 and 8.
 
I think this Is a windows 10 problem by the looks of It--This Is only from what I have recently seen--maybe wrong.
The fact In my case, corrupted files ,obtain a new program Is telling us something. Obviously going through the  update program centre.               Something is wrong
 
All the best
John
 
 
 
 
 

wrt kontakt, did you try flipping the multi-core setting in kontakts own options?

pwalpwal
wrt kontakt, did you try flipping the multi-core setting in kontakts own options?

Good thought. For the OP, I have a similar older quad core processor, running Windows 10, and the new SONAR update runs noticeably quicker and at lower CPU hit here -

igiwigi
Hi
I have noted that looking at several posts, I have found that people running successfully mainly have windows 7 and 8.
 
I think this Is a windows 10 problem by the looks of It--This Is only from what I have recently seen--maybe wrong.
The fact In my case, corrupted files ,obtain a new program Is telling us something. Obviously going through the  update program centre.               Something is wrong
 
All the best
John
 
 
 
 
 

SONAR updated fine here using the Command Centre - quick download despite a slow connection, I also am using Windows 10. New version is quicker and lower CPU. I would try to download again -

I am also running Win 10 with no problems.  I have opened several older projects with 4 streams of Reaktor, created new aux busses and patch points and all is good.  On my system, JP is running faster that the older updates of Sonar.

Hi Markus,
 
Thank you for sending us a sample project. We were able to reproduce the issue and are currently looking into resolving it. 
 
From what I can tell, the issue stems from having Allow Arm Changes enabled in Preferences - Project - Record. Disabling this setting in the meantime should improve performance. 
 
Thanks,
Daniel [Cakewalk]

OP was advised to check for Allow Arm Changes...  (a.k.a Dynamic Arming) being enabled back in post #3, but never mentioned doing that.

Dan Cate [Cakewalk]
From what I can tell, the issue stems from having Allow Arm Changes enabled in Preferences - Project - Record. Disabling this setting in the meantime should improve performance. 

 
As stated above for my experience with the same issue, Arm Changes are/were not enabled. Any other thoughts?

Dan Cate [Cakewalk]
From what I can tell, the issue stems from having Allow Arm Changes enabled in Preferences - Project - Record. Disabling this setting in the meantime should improve performance. 

 

bronsoncox 
As stated above for my experience with the same issue, Arm Changes are/were not enabled. Any other thoughts?

Arm changes was known issue in Ipswitch Update 1, the implication from the ezine was it was fixed in this release.

Upsampling on playback? When you say "no antivirus" does that include Microsoft Security Essentials? I had an issue recently where MSMPENG.EXE was scanning every file touched by VstScan, causing major playback issues while background scan was running at startup. I added VstScan.exe to the excluded processes list, and the problem went away.