Can't seem to remove a face and body in a group photo

When trying to remove a body plus its face, face remains as a sort of ghost mask, with some background showing through. Subsequent removal attempts of just the remaining face fail.

Would you mind sharing some examples of this problem you are having with the process? You can also take a screen recording of this behavior so I can see exactly what is happening.

Loom is a great free application for this: Loom | Free Screen & Video Recording