Can users who have the Must change password at next logon flag set still authenticate or register? (4226957)

The Change Password in Active Directory activity (a core activity of the Manage My Passwords workflow) has an option of Run this activity only when user must change password at next logon.

Please note, you would only enable the Run this activity only when user must change password at next logon option when using the Change Password in Active Directory activity outside of the Manage My Passwords workflow as only users who are flagged to change their password at next logon would be able to perform a password change.

By adding the Change password in Active Directory activity with this option selected to the Manage My Profile (formerly My Questions and Answers Profile) workflow, you will force users who are required to change password at next logon to change password when creating or updating their Q&A profiles. Please see attached screenshot for reference.