The private credit industry is facing fresh scrutiny from top global regulators over some of the ratings being assigned to debt in the $1.7 trillion market, people familiar with the matter told Bloomberg News.The Financial Stability Board, which monitors global risks, has high-level concerns about the potential for “ratings shopping” in private markets, where firms can seek grades on transactions from multiple providers and opt for the most favorable one, one of the people familiar with the supervisor’s wor ...