Investors who sued Mark Cuban and the Dallas Mavericks over their promotion of Voyager Digital have appealed a federal court decision dismissing the case on jurisdictional grounds. The notice of appeal, filed Tuesday with the U.S. Court of Appeals, seeks to revive litigation tied to endorsements of the bankrupt crypto lender. The appeal underscores the continuing legal exposure tied to celebrity crypto endorsements, even after an initial court win, as courts and plaintiffs continue testing liability boundaries in digital-asset promotion cases.