Transaction not yet indexed

Nn6HKZF9YLDrPfBSe4KsULnqRTT3ZQG5FExdFtWfYGDFCnU6NJKczf8xxSepzEDiW8eY31YtBTKp8G7v7SScitH

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