Transaction not yet indexed

i421BSiBMpsaM7MbE4KWdaZ1mdTmXmLnyWfqZhsEoBiSV4js71Hk8zEH16FVfY9c9fCk3ZEQZU5EqbmEkwc5XXp

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