Transaction not yet indexed

21ktkZ6EGrw6XRckWkfKe2wpRv4pXKgapKQSdadFHPAdW8Ez5JBrs17jS36CwMbKu9riBNwFXEoJMB55F4TCxYsF

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