Transaction not yet indexed

1AmbRFkY6PxgUMknLAQ1u6zytGmyJTFCWxqauWcrAix2mPwaiyfSsZPBdXvsKXDq9bGQHY1E7fVB5fR7qK4LmsT

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