Sorted. There's a thin metal spacer/seal on the inside of the hub, this got stuck on the XD freehub body. In effect I was trying to put two of those in one hub and that lead to seising.
Bam! Good news.
@Dogs started
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Sorted. There's a thin metal spacer/seal on the inside of the hub, this got stuck on the XD freehub body. In effect I was trying to put two of those in one hub and that lead to seising.