Transaction not yet indexed

2a51AH9uEXoFCAMkyn66cq3QZq6YotFfBHwKVQHmWuJMf8FViLYJFQrAMNXqdgHyhN1TkBUxED4iZyDQkdZdgELK

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