Transaction not yet indexed

21Kf3kVtLFJcVGizML9QDTwdJ1sCB1P3VwfXWUG7nXfXVBf8qNV15jbV8az8dZiJXXQnYPGYV57q9u5AtJUHHpB1

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