Transaction not yet indexed

5b21W1oCY76ro7vqSErn33hs9jgnY4RA1tJJQFv5cZM5Y6cxanAjX9Z675kZtjuofDR89jtXdyZQnw2yqAMUVPvP

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