Transaction not yet indexed

MPk3qU1ZBcj5pTvUw8DAY4PZC95mEPN7EqKzKwxx5tSYa3y55PLVyvdqeK3tb7qwTCbBxweFE7KYbZPke4VvZg9

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