Force policy update
Sometimes when policies are updated in Google Admin Console they are not immediately reflected on the users account/device. Forcing the policy is fairly simple.
First, open Chrome. Type chrome://policy in the address bar and press enter.
This should load a basic page with a list of enforced policies. Click "Reload policies".
In my own experience I find that clicking Reload Policies once does not always update the policy. Try clicking Reload policies two or three times. Also, note, you can view the settings that are set on this page as well.