Transaction not yet indexed

21Mzt8e64eJ3PRpCNLq8F5bNh7gnaH6ugzdbwSEby6Q3ab3pygSzL6x2t5cE8gbTb3LyWSmbG7dDb1YPzqdSfpkg

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