Ran through the New Light campaign on my main to see what it was like and I picked up the post New Light quests for some easy extra XP. The part of the quest that requires a few game of Elim is bugged and does not track any valor earned. When I first got the quest it tracked but the I reset my calor and have not been able to progress the quest any further, due to the Valor Earned step not progressing. I don't know if Bungie is aware of this bug so I figured I should report it here since its most likely to be seen here
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There is currently a known issue where resetting your Valor, or Infamy, will realistically block all Valor and Infamy gains for their respective New Light quests. If you have reset Valor, this would explain your experience.