Salary Field Visible for Some Users in "Me > My Activity Center" — How to Hide It for All Users?

We are experiencing an issue in Oracle HCM Cloud where the Salary field is visible to some users in the "Me > My Activity Center" page, even though we intend for this field to be completely hidden for all users.

For most users, the field is hidden as expected — but for a few users (possibly with elevated roles), it appears.

What could cause the Salary field to be visible for certain users in Activity Center, and how can we ensure it is consistently hidden for all users?

Any guidance would be appreciated.