Hey joden, sorry to get back to you so late...been swamped with stuff.
My method is probably not the same as I didn't use any midi loops. I played real drums on my V-Drums kit, and then used the SNTT CAL. No problems and no crashes after.
I don't use SIT ever because I've had inconsistency issues using that method. I believe the bakers have since fixed the issues I had, but I still stick to the legacy method....one midi track and one dedicated audio track for my VSTi. I'm using AD2 using Fairfax Volume one "Neutral" preset. I'm wondering if it may be how Sonar is handling the loops you are dropping in opposed to the midi on the fly that I am creating? I would say to try and report this to the bakers or try and call tech support. I have had great results with phone tech support.
For what it's worth, I'm running Sonar Plat x64 over here.
Also, I noticed in your first post...you say "split notes to track". In post 12 you said "SNTC" which is "Split notes to channel" right? I did "notes to track" not channel as I have no reason to do "channel" on my end. But I'm working perfectly without a crash on this end. SNTT gave me 16 individual midi tracks of drums on the project I am working on using AD2. Sorry I couldn't be more helpful. I hope someone can help you fix this issue.
-Danny