The Outlaws of Thunder Junction release includes The Big Score, a 30-card set with the set code BIG. These new cards are also permitted in the Standard, Pioneer, and Modern formats, as well as Commander and other formats.
The Outlaws of Thunder Junction release also includes Breaking News cards with the OTP set code. These returning cards are legal for play in any format that already allows those cards.
The Big Score and Breaking News weren't included in the update. Pretty sure both are Standard and Modern legal unless there's something I don't know
Should be fixed asap!