Transaction not yet indexed

51ai2Tad7ANvYpoMSoS9fvTMPSQe6aEDdddCqcZi5nPtSNk8kUh1AhQpRirJGo6vDEDfdeZ9pmKFcrb8JmM8ajLz

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