Transaction not yet indexed

21SfJLHuFzJUpcYjmcTHGCxBwTbugqEWpoXzxRsuNdggkJDRmx2Dn4ZCHyWninmCqXD8SWTD4v4UmLB1aFXW6DXo

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