Transaction not yet indexed

4S421iNgAsZQqf5TBQM5ARdu2q7hRxXvvSSC74JY869NaY8GFgbzJDMCycVAB5wX9kqqQ9apFktdaBZNNTUUkVX9

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