Transaction not yet indexed

21sTfdL5omDs8Rfvi1MQbcuiBYrysxhVVeAsXrcgvvFwBqP1vKWJ6FsFNhKXkmvMgXQdR11J2ADEUM9HmDJQ52F6

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