Transaction not yet indexed

21S6rCHLaskFM2e8Fbc4M8MiaQoeNQgw73xpwoB8VG3fzZhmVrrNLcWfddgqMFJ2EK99nYNNpnymi19VLiWj48Jz

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