Transaction not yet indexed

21fNfniJKBzDSNDBmxCsMrvvwSLSueevYTYZeaKvRBybgtzMGfHU4jVWjDjLe2NHFEbf6Dmgs16vqdU6AYF6SEE8

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