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I found out that Posemagic Pro was causing this error.   Is there a way around this or should I just avoid using Posemagic when exporting to Lux?

I haven't used Posemagic very much at all; but I recall there was a script that could turn Posemagic's poses to regular poses.  Could you not set the scene up, convert the poses, then delete all of posemagic and apply the converted poses?  Just a thought.