Transaction not yet indexed

EX4C21vtU6MWimy7Yr7W74aZATEgtecd7nAf8hFrExuPfybFAyvbefqtGYUFT8bmMR2DaaHrpG5m33WRTGvXz62

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