A federal judge has rejected approval of a class action settlement that drew an unusual objection from the U.S. Justice Department, but one that it withdrew.

U.S. District Judge Renée Bumb in New Jersey found on Tuesday that “many fundamental and important questions remain unanswered” about the settlement, which gave credits to customers of an online wine retailer while awarding $1.2 million to plaintiffs lawyers. Her ruling comes even as the Justice Department, which challenged the deal along with 10 other individual objectors and 19 attorneys general, did “an about-face” in supporting the settlement after lawyers made several changes.