Transaction not yet indexed

NFb6CRYtgLrUrRge5fvTuouKWyyxPMKj7wK1CwWF17S15BDVCJaoFDV4Khnqj3uofJcXxTzv7m2BdwA1HXGg8hy

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