My Weather Effect Action (never works!)

I've been doing it a lot of times since my old 1.07 patch but still i can't do it! what seems to be the problem? Not even doing it simply!

i even made a trigger sample

Events

Player 1 types a message containing -rain as An Exact Match.

Conditions

-

Actions

Create a Weather Effect in Rect000 Ashenvale Rain (Heavy)

but it still dosen't work i wonder why? can someone help meee?

You need to turn the weather effect on;

Is that really necessary....?....alright....

Heh, I had the same problem :)