Transaction not yet indexed

51ku299DdADuSHVcVwdRTQm9y8FV8gV2bDFtLRfgUnpNxBES5NnsXiHqpfC3o211YRYttTsLZHHau1paKE3u7jLf

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