This case was the challenge to the 2015 BIA ICWA Guidelines. The case was dismissed at the district court level, and NCFA appealed the case to the Fourth Circuit. Earlier this week, the appellants motioned to vacate, and today the court granted it. Given the BIA withdrew the 2015 Guidelines and they are no longer in effect, this makes sense.
This does mean the lower court decision is no longer precedent, to the extent we used it as such.