After updating the PWD_*, the password prompt to change the password is popping up in some clients for some users, but not others.
As explained in this knowledge article, users will not be required to change their password if PWD_* settings are put in place in UC_CLIENT_SETTINGS unless one of the following is also true:
The above three points apply at all time. When a user falls outside these parameters, they will not be prompted for a new password.