[SCRIPT] Not all commands work in a function (EffectVoices)

[Darkfire]

This is the script.
I want the sepia to happen in the middle of the speech, so I used

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SetEffectVoiceOverCallback("ContinueDialogue1"); 


The function ContinueDialogue1 is called, because the next part of the speech

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ContinueDialogue(); 


works.
However,

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FadeRadialBlurTo(0.05f, 0.1f);
 FadeSepiaColorTo(1.0f, 0.5f); 


Don't work for some reason, even though they're in the same func as

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ContinueDialogue(); 


, which works.

To specify, the script doesn't cause a bug, just the visual effects don't kick in.