Transaction not yet indexed

Qqn21dUB4EwSCdg7DLSbmpccDnEMdaibBdEYBT1uNmPAaSptEdu6d4Gez9fQr6mHevqMjpLfGRUwfGX5UGmg4WB

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