Manager Rating option during Evaluation is missing for few employees. But listed for others

Hi Experts,

This seems to be a very typical issue where a manager when evaluating his/her team members, is able to view and access Manager Rating option for some employees. However, the same manager is unable to view Manager Rating option for his/her team members

As an Admin, I tried to evaluate the impacted employees, but face the same issue. Please advise, if you ever faced this issue

The option is visible for most of the team members:

However, for a very few other, the above screen does not come up when Evalute option is selected

I tried comparing the roles assigned to these employees. But they are same.