Transaction not yet indexed

21UnoVkGYBA7mpd9G4mNQ4ceVjZuuakKLMcgpLqR7zSw9xK3o4HtV7Sn3i7LRMpXPAVhJvkDHTpMuM69nWHUAbBb

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