Weird BBCode problem
 

For some reason* any BBCodes I create with just {param} work fine* but if both {option} and {param} are included in the HTML* the code doesn't work. Why is this? I'm placing them in the right places.

It's this code* I'm trying to add:
Code:
spoiler warning
The proceeding text contains a spoiler.
Plot and/or ending details follow containing information on {option}.

{param}

Please help