Benchmarking Class in CI 2.1

[eluser]Demonicpagan[/eluser]
I've been trying to get {elapsed_time} and {memory_usage} to display in my view files and all I get is {elapsed_time} and {memory_usage} showing and not being replace by actual values. I've even gone about not using the pseudo-variables and actually echoing $this->benchmark->elapsed_time(); and $this->benchmark->memory_usage(); yet it still displays {elapsed_time} and {memory_usage} when displaying the page.

Is this a bug in CI 2.1 or is there something I'm missing. I am running PHP version 5.3.10 and it is configured with --enable-memory-limit.