Transaction not yet indexed

21LU6a135ZnvTD4EG8vgA3cRKwSVQWxVidk7aZK2HBj56KcnZpWtRnRNcHoHPM4q1YS8o6dQZcbWrcqYJSsBTsdZ

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