Transaction not yet indexed

21Sd8RLfaKHjWpTWyU4xEBqQjDfG7nC1LqxN345ss1mRwvp7XifmxEeVENkybK9RkYtAGcdy7BtpA2gKtCBAMGCy

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