Transaction not yet indexed

21u4WPrDfn5eMT3T5pYo5EbLLdfRmLGdQz7H4QVZuMVbzNpUqC5oReBSY11pA9aLBmT5KPth9rVcL8QA9kMmiBre

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