Transaction not yet indexed

MAn1Ku2cxWeKq4z4N5ZuLt5PWL9KYP2Zdk88bRZ1onFexuKqqem6eva11tDbeL25HyeURU1LGM7JjsLHcCDUcRR

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