Transaction not yet indexed

5MffEcrSUDcis1uKxDNd7qkvZ5CswkmaHTaWRMjqZteViUvz4uVMes9eH6uAqBBvecYNVY2fsENkZ9AMRLgiLM81

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