Transaction not yet indexed

21K5xtybmwr7XkKQ2d3PAMnoQa7uCPyiEEWtyeW8h1TPVawP7NmBcaoPBXpMBV2HgvEVpY5bTHMPYaXTNKQ9haw5

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