Why can't I do this in CI?

[eluser]Aken[/eluser]
It looks like you're trying to set the property of a class, and have that property still exist after a redirect. A class doesn't keep properties when they are instantiated. They must be defined, either through hardcoding or through a method such as the constructor.

Have you tried checking if the session ID has been set property BEFORE performing the redirect? Because I'm guessing it was.

Unless I'm missing some other point you're trying to make.