Transaction not yet indexed

5n21vMjw5LyBbnWiV1w7C5bVeWUyd69a9FuiNpzErdbFfzCJzJBHsiKaWs8fJLzxw8ePHh5zg2EUTdgavs2ufS43

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