Transaction not yet indexed

1mpq51TMfuCudq5XNcgvVZiz54KPbLmCS9aC43FfjowjAXVqStaU8TFFKwjTrSp2bNQhvmk5rQ2AK8Zaac2ZWZ9

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