I am running Titanium SDK 3.3.0.GA and I am running Titanium Studio 3.3.0.201407100905.
I have two problems with the debugger.
1) When the debugger hits my breakpoints with the iOS simulator it is not executing that line of code. It is off by a few lines. It makes it very hard to use.
2) This one may be an even bigger problem. I've noticed that I can't debug any files in the /lib directory. The debugger simply ignores my breakpoints. Is that normal? Is there something I should be doing to debug those files?