I'm having trouble getting my Quester profile to select the right quest reward. Here's what I have set up, and a screenshot of the quest log in-game.

This inbuilt function is not working. Bot will always pick first item, no matter what.

You can code it yourself, or use a plugin that will choose an item for you, like:
 

 

@Droidz, is this true? Is the Reward Item function of the Easy Quests Editor not working? 

Yes, it's true.

Okay no worries. I guess that's why it's a "Beta" feature ?