Transaction not yet indexed

5S21FtAGksYN2iPFgFtLdwpgp4py9AiMbeYuiSi7SXfyzFEx7X41fiCHXXiFtA9zenBA331BUfZHbXyrk6Z8mDQC

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