In a highly unusual move, the Florida Supreme Court ordered a second round of arguments in a battle about whether the state has properly carried out a 2016 constitutional amendment that broadly legalized medical marijuana.

The justices heard arguments in May in a lawsuit filed by Florigrown, a Tampa-based firm that has challenged the constitutionality of a 2017 law that was designed to carry out the constitutional amendment. The case centers on parts of the law related to the licensing of companies to operate in the medical-marijuana industry.