Disagree:
A conversation regarding validity/invalidity is only intelligible with regard to a sacrament, not a rite.
If you say no, we speak of invalid rites all the time, I would respond yes, but always with regard to whether or not the sacrament is confected.
To drive the point home, consider how impertinent and conflationary it would be to attempt to discuss an “invalid confiteor, or Agnes Dei, or Sanctus, etc.”
Those things can be right or wrong, but valid/invalid?? In what sense?
What does it mean to have an “invalid Sanctus?”