Transaction not yet indexed

21SZYZHd25KEVKM1AYYFaQc9s5pfFLWNNAjGDmNAwEHBx9uiWYHYKqB4xuZ6e7pKG8TuqmrySuTBvS6gMUMqTe3H

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