Start up Sonar X3c and load Rapture into an Instrument Rack.
Make sure Enable MIDI Output is off. (I don't know if this matters, but that's what I did)
In the Instrument track select Omni mode and Master output.
In Rapture select the preset "03-Leads - Classic Square". (I don't know if it matters what preset you select).
Save this track as a Track Template named "Rapture - Classic Square"
The setup looks like this:

http://www.arachnaut.net/images/Cakewalk/Pure-Virtual-Call/1-Track-Template-Saved.png
 

 
Delete the track and synth rack entry
Import the track template
This is what I see:
 
http://www.arachnaut.net/images/Cakewalk/Pure-Virtual-Call/2-Import-Track-Template.png


 
 
Note that Sonar has made a MIDI and Audio track and is about to merge them into an instrument track.
Does anyone else see this?
 

Running Win 7 64bit X3c Producer.
1) Created an instrument track with Rapture
2) Set the Rapture program to "03-Leads - Classic Square"
3) Saved instrument track as a track template
4) Deleted instrument track and synth
5) Inserted new track template....OK, no error reported.

Thanks, scook.
I'll keep on looking for something else.
(But you are using Windows 7. I am beginning to suspect that the latest Windows Update from 11/12 which had a lot of 8.1 patches may be an issue.)
Anyone with 8.1 up-to-date care to try this?
 

OK, it must be something to do with my 'Normal' template.
 
If I start with, say, the 24 track template and delete the tracks, then do this, it works fine.
 
A few days ago I determined that I had a Normal template problem, so I recreated it again.
 
If I use the original 'Normal' template it works fine.
 
What I had done was start from a New Blank project with almost nothing in the GUI.
Then I add the stuff I want.
Then I save this as a 'Normal.cwt' template. (I rename the original for backup).
 
I've been using the same older template for a long time and this last week I've been having lots of weird problems. I thought I had them beat, but I guess not.
 
I guess I'll just live with the normal 'Normal' for a while and try again later when I can get a fresh perspective on the problem.
 
 

This is very puzzling. For one thing, there are no resources running. No audio, no MIDI, no CPU stress, a completely Idle system.
 
Several times now I have started from scratch and built my Normal Template.
 
It's not really very elaborate - I remove the Metronome and Preview Buss, change a few track icons, set up the various screensets, put in a copyright on the Project Info.
Adjust some track heights and track control settings, set up the default prochannel settings for buss and tracks.
Fairly straightforward stuff. Nothing really new in X3. I don't change track colors.
 
Not elaborate, but still it takes a few hours to set these up and I'm getting tired of doing it, so I'll give up and just start with the factory templates.
 
I'm tempted to try a restore of a system image from before the last Windows update, but since I made so many changes to the Sonar content on a different drive - I'd have to restore them as well and I'd lose a lot of projects.
 
Easier to punt and wait this one out. I'm sure the real problem will surface in due time.
 

A clue:
 
There is a difference between Export.. and Save As...
 
The same project saved these two ways as a track template yield different binaries.
 

Saves as... template yields the error
 
But
 
Export... template is OK.
 
I will continue...

When I create track templates, I right-click on one of the tracks selected and use the "Save as Track Template..." menu option. If it makes a difference.

Back up.
Run windows update several times. If that doesn't fix it install this:
http://www.microsoft.com/en-us/download/details.aspx?id=30679
 
Good luck.
 

Most of these crashes occur in MSVCR110.dll, which seems to be up to date.
However, your suggestion to update the run-time distributables may be a good one.
I would have thought that Sonar X3 would be quite up-to-date with these since it came out so recently.
I'll see if the download and install makes any difference.