Transaction not yet indexed

21TsaEWXgATRcJFFwmNf3rHzCgibwCvwTEAvCMAtA3hYiwDXD3U1qXnDrGShCjwSrj1eAz8v2CsSyH8HvW3Su171

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