Transaction not yet indexed

ddNXc7yGcMr3PT6brkVaEK9jzjNjN6bhQ2WPqdyZAJm6zfutqHjr4kdCbxA9fgzLbuKHZwG7ra6nUSATdKHPP28

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