FileVault password not sync with AD user password

1.     Remove user from filevault (Login as Local Admin)

sudo fdesetup remove -user firstname.lastname 

2.     Restart.

3.     Re-add user from filevault

sudo fdesetup add -usertoadd Firstname.Lastname

4.    After hitting enter, you will expect the following in terminal:

Enter the user name:Administrator

Enter the password for user ‘Administrator':

Enter the password for the added user 'Firstname.Lastname':