Transaction not yet indexed

AMmgAZZSi7zVsNbFbBheSWQRANFQd3xzBEZE2Tzo2gQs7nrdHi9vGQLxFprvzPBMTpntiYUC1Dfqv72SLGopoHM

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