Transaction not yet indexed

3MampsEZspYTsBXGnWcMB9u1cGV1mqdPB2tFqaKSadmfuTsEdo2hFdsZ2fkZfgwbDrL7ox3WCnCpF1g8zh1mbKz6

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