Transaction not yet indexed

21UGL4MHtxE3iwXuFsaYAXEcrHcjXBYThNMdFN2waSJbRuDiCyGKKp628aMNDZi7JJ2ekoKBYZPYLSUbaSr3G1n2

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