An ACI has been added for user, granting read and write permissions to the person attribute that's on the form, and Modify operation is granted. When checking the attribute on the form, it's not read-only on Modify. The end user sees this attribute as non-editable in the self console (Self Service User Interface, aka SSUI).
End User logs into self console, clicks on 'View or Change Profile', and the person attribute that has ACI configured for, is not editable.
By default, the 'End User View' has 'Change My Personal Profile' box unchecked, under 'Self Service Console' section.
Diagnosing the problem
Review the view, in the ITIM console under 'Set System Security' -> 'Manage Views'.
Resolving the problem
Check box the 'Change My Personal Profile' in 'End User View', under 'Self Service Console'.
TIM ITIM Identity Manager