Transaction not yet indexed

21tgDyJD647Me6Sr9eSNFe9WDAE5vnVDF9CJ8DBdA3VtkqYnrZUAy2oMjRDbCUdfgSUatWxHx7DmqUnHHtv4x5Sm

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