Transaction not yet indexed

21U6TfbFVotnYXSCgxQx31n6yUMivB6M7bMTUbQPtxePrpCxvhyf72pc956zmwtETLw3fwBtnxbzHS8Q7VuGrrPM

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