Completed the Nadira event, killing the assassin, and succeeded in check to obtain soul coin. As soon as she handed it to me, the scene looped back to the beginning...conversation repeated, made successful check and of course she went to give me coin and stated someone must have picked her pocket, as she had already given it to me. Conversation then ended as it should have before loop.

Assuming the loop was a bug of some kind, and not her being so grateful she wanted to reward me twice....