We recently build new environment with Windows 2019 STD and migrated all users from old domain. I wanted to exclude password complexity for particular OU, so i created a separate policy and linked with that OU. After apply this policy, i was unable to change the password for AD users in that OU, getting error "Password does not meet password policy requirements".
I was suspecting the Domain controller policy overriding, since i am changing password from one of the DC. So i removed password policy restriction from Domain controller group policy but not working.
My OU and Domain controller policy modified as below,