Transaction not yet indexed

Niwupb1SAA9sCba4KqiLfUNC9HrBE6AwM3zGEuLXqXez1UVuFRPc99eYojVHffUfs21osXKFJbSNPkWvSW6AmQA

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