Transaction not yet indexed

21XhtUrMh1EbEYY66uKdcUPCsqZaEydaSr1MjYxNC8F5Q4dEncGqSbbziwbh7MCNBtGhzUJPLWqSpLhK8jZ66nW7

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