Transaction not yet indexed

21U8sEBggsa2NwdeNCfch5LB1UpeKQT3cd7hzGCK8RgC96cWiaZpLACtVnb5aPFZBRJag8iFjbiNPrFUTS8m5GNb

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