Missing pattern from library

I am loading a intro.swf into quiz.swf. Intro.swf has 3 identical symbol slide effects. When i run intro.swf on it's own it runs fine. When when I run quiz which then loads intro.swf into using the loader class in AS3 I get the below error.

FLASHEFF2 ERROR: The pattern 'com.jumpeye.flashEff2.symbol.slide.FESSlide' is missing from library.
at FlashEff2/set showTransitionName()
at FlashEff2/setProperties()
at FlashEff2/set xmlString()
at Intro_fla::MainTimeline/__setProp___id0__Scene1_Layer4_407()
at Intro_fla::MainTimeline/frame408()

when you load the swf you have to use separately application domain like in this code:

var separateDefinitions:LoaderContext = new LoaderContext();
separateDefinitions.applicationDomain = new ApplicationDomain();
swfLoader.load(swfRequest,separateDefinitions);