Transaction not yet indexed

21c8LUj6bjFvVxVc9mP4XMCt8gxLDwNo5mZQdYATpDYdEyY6pr4mWvRFEA6p4bJCoPsFsAnxF6RM4AWFMd4RUA67

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