Transaction not yet indexed

21UnmnLzqEzuzXMnEk49LVuXST87kbwwkkRE87B5aZoXzkL39aJpKk9TcDKdPLS7ML7eqRLMMFsb3Wm9i13bTmDq

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