Transaction not yet indexed

21UMHUBQAs7nPXXMnUYBaVpsa1yU56vWn5PDA2khjZTw8D4HzxfsjSUD1hnNBqqj4VaG1GpcjQcr4BWrDLk5ADvM

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