flashdata not cleared

[eluser]iFadey[/eluser]
Okies. I looked the code in detail. The problem is simple.
You are using caching here.

Code:

$this->output->cache(30);

Actually the flashdata is removed but you have cached the page for 30 min. So it will keep showing you the old page for about 30 min. If you remove caching here, flashdata will be not be displayed again n again.
Caching is very imp for performance but use it with care because sometimes it makes debugging difficult. Again I am not saying that don't use caching. Use caching but with care specially on pages which you think will not change frequently and pages which perform heavy database operations.