Transaction not yet indexed

UDUnrYGzKUzRf3gWLkdHk8ETmkw51R4AvUDmFuyADkemuL9Cg85fuxbfnvHWYEXmdwVD8avEXEXa4BS6rqvNa18

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