I have a bass guitar track that I'm trying to quantize with the guitar. I thought it would be a perfect time to test out the multi-track ARA capability now in SONAR. Well, unfortunately I was sorely disappointed in the results. It just doesn't work well. I thought it might be because the bass track was Melodic and the guitar polyphonic but changing the mode didn't seem to make a difference. I'll post a screen shot showing the before & after. Has any one else had luck using this? 
 
Before: 
 
After:
 
No matter which interval I select, the results just aren't that useable and I end up just manually slip editing each one. Am I doing something wrong?

OK I think I may have solved the problem. Melodyne had assigned a different tempo to the region effect so was quantizing to that instead of the project tempo.
 
However, I'm now getting lots of crashes using Note Assignment Mode. Anyone else having problems with that?