On April 22, a Republican candidate for U.S. House in Missouri filed a federal lawsuit, complaining that the legislature has still not passed any U.S. House redistricting bill. Berry v Ashcroft, e.d., 4:22cv-465. Here is the Complaint.
Missouri is the only state in which the legislature hasn’t yet passed a bill for U.S. House redistricting (except, obviously, the states that only have one seat).