I have to run some errands, but will try to do some digging when I return.
 
Bob Bone
 

If this is indeed a driver issue then the best thing to do would be to contact Roland. Unfortunately there seems to be no problem report form or other way of contacting them on their Support page ... http://www.roland.com/support/

Just curious, how big is this LASS template, and what version of Kontakt?
 
Bob Bone
 

Are you using B2 Reverb or any other effects in this project?
 
Bob Bone
 
 
 

I found this thread - dunno if it applies:
 
http://vi-control.net/forum/viewtopic.php?p=3656059
 
Bob Bone
 

To switch Sonar X2 to ASIO driver mode:
Press the P key to bring up Preferences
Under Audio>Playback and Recording... switch Driver Mode to WDM/KS
 
Once you have the OctaCapture configured using WDM/KS, try opening the project.

Seth: Thanks for the link and it certainly seems that Roland don't have that facility. Looks like a phone call.

Bob: It's five instances of Kontakt player (the latest release 5.2)each instance running one string section. It's the recommended way of doing it. Its also version 2.5 of LASS which includes preset templates to suit Hard Disk type/ Ram. I'm using the medium SSD divisi multis and they total about 5.5 GB in size according to Task Manager including whatever ram other processes may be using. If I purge the non vibrato samples then its reduced to under 5 so I would be amazed if it is a memory issue.

I'm not using B2 reverb, but using the stage and colour presets built in to LASS.

Bibs

Seth [DAWGURU]
If this is indeed a driver issue then the best thing to do would be to contact Roland. Unfortunately there seems to be no problem report form or other way of contacting them on their Support page ... http://www.roland.com/support/

Thanks Seth, obviously we need to make it a bit easier to email us! :-) Currently, you can email support either by choosing 'Email Support" from the support menu listed on every page or by clicking the 'Email Support" icon on the top right of the page Seth listed. Apologies if that is not clear.
 
I have checked our Knowledge Base and do not see any specific reports of issues with this combination of products. Please do let our support team know the details and if there is an issue on our side we will do our best to get a resolution.
 
Robin
http://www.rolandus.com/support/knowledge_base/
 

Hey Robin,
 
I get this exact same error and I don't even have Kontakt loaded onto my computer.  I would rule Kontakt out as being the cause of the issue or at least the main cause.
 

Robin Kelly [Roland]

Seth [DAWGURU]
If this is indeed a driver issue then the best thing to do would be to contact Roland. Unfortunately there seems to be no problem report form or other way of contacting them on their Support page ... http://www.roland.com/support/

Thanks Seth, obviously we need to make it a bit easier to email us! :-) Currently, you can email support either by choosing 'Email Support" from the support menu listed on every page or by clicking the 'Email Support" icon on the top right of the page Seth listed. Apologies if that is not clear.
 
I have checked our Knowledge Base and do not see any specific reports of issues with this combination of products. Please do let our support team know the details and if there is an issue on our side we will do our best to get a resolution.
 
Robin
http://www.rolandus.com/support/knowledge_base/
 

I don't see the Email Support icon on the top of the page I linked ... http://www.roland.com/support/article/?q=information&p=UA-1010 ... where exactly should it be?
 
Also, when I go to the Octa-Capture's product page here ... http://www.rolandus.com/products/details/1127/498 ... and click on the Support tab I see the option, 'You can also contact our Product Support department by phone or email.' However, clicking the Product Support hyperlink takes me to an FAQ page, not a contact page. 
 
I'd like to be able to submit this bug report should I come across it myself. 
 
EDIT: Nevermind, I see there's an Email Support button on the FAQ page.