Transaction not yet indexed

5x21p42b76sUmE2D1dFj5pvtix2B7PDv3yhjVxZNDfDy2wAwvyJs6rBkqdBgF8jX9zY2E7s5as1tJjoHJsMW2gca

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