Transaction not yet indexed

21L51HvdUukWK2TJXLo3Qqr9YXJBJWaaVKWw8vXWcposGF1YnSZJXacwxXmoC999XKEjL1VTNEimfzwVs45GHZJ3

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