Transaction not yet indexed

642ok19jHkpjYVMMYmobVJKFBe2WhP8A8LotNX3mrq7h5YNrPWGZPQDRYR1ZXHZ1dAbpMXHEF8PpZQ6CrA3cUZve

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