Transaction not yet indexed

21Uk56tkAaaGMfVxNhBbU4D9KvG1nYRq5eAT32udxNsq2Hee6zoiLUAkw9pZMP53Ztduw2hUfijuHeTRhHGrPwxL

The transaction signature is valid but not yet indexed by this RPC node, or the transaction failed before inclusion.