Transaction not yet indexed

1isZwkP8AxkVrCUfiEyKshq1yaTzZ1YGU9duzGAUmazvqKntqpBnnGWHFgbFq91LdDmpNETcRdFoEvZKiEdi43U

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