Transaction not yet indexed

21LtMz7VfeoCqBkTPJjsZxMY1iTudxMcEVnFLSeAfQ2V4KkGYtLzzsgaMY6xhRumESxKtzQNcJYZMmKsjk1n8YmF

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