Transaction not yet indexed

Mpu3bK9qcfso3f4E9m5fE9GnnnnYceAPU7dq7irQLjfHcLyxG2SoYb2V2b84UR5SsNyE5Z7MHjoHyQWD9xMEhpU

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