I had some problems when I used the patch from 44 to AH2, almost as if I'd skipped a patch some where so I deleted the patched version and went the full download route. It fixed things including CTDs.
Several of my squadmates have reported odd behavior also but the killer complaint was the CTDs so of course, I've had them go the full dl route too and like me, it fixed the problems, at least as well as you'd expect from a .0 version.

Seems like something was left out of a patch somewhere.