Transaction not yet indexed

1n21PpD4gASjiSWHLN2au26BWEWxpAPwSLn13YXT8q51FmaPF3fFH8SdwoWPN75ck7MKmQ1Hqnx3FsY7LLaedC4

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