Puggles
If this can't be fixed, unfortunately, I'm going to have to go to another DAW.
I'm sure your crossfade thing can be worked out, although I'm not the one to help you with it.
I do, however, highly recommend that you DO go to another DAW, which is
Cakewalk by BandLab, the free successor to SONAR. It's SONAR, but with new features and many bug fixes. It's faster and more stable. It looks better, and has some nice new features including additional algorithms for audio stretching and pitch shifting.
By itself, it doesn't come bundled with all the add-ons that SONAR Platinum did, but for people like you who PAID for SONAR, the great news is that you can install CbB alongside SONAR and still use all those extra features along with the new ones in CbB. Best of both programs.
As you've noticed, SONAR is now unsupported orphanware. CbB is not, and if you can't find help here in the forum you can submit a help ticket to an actual support technician.
Go here, create an account using the same email address and password you use here at cakewalk.com, download the BandLab Assistant, and you're good to go:
Http://www.bandlab.com/cakewalk