Transaction not yet indexed

21Si2ddkJFdyTav4o7avFPGy6yBRgapkFz7bNAyEVPYLUHCVgNbz7j8UMdS2KYefHg5UaPTRJoSRhoVVRY9Amos6

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