Transaction not yet indexed

21LkkAiP5oq529mM5jv1XzA8e1PrJJdr9UtVVDFhswKPTvVX4fRU9RQ8Z23PpGrfDCTAzo23bx7GiC34k2dECEnu

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