the issue is Apple has yet to push out their updated Property Fields and is still using their 'deprecated' ones  we tested through configurator with the deprecated Property Fields (WhiltelistedBookmarks) and it worked.    per Meraki support their devs discovered the same issue and are working on a plan to reverse the Property Fields back to the Apple deprecated ones   ... View more

having the same issue with their Web Content Filter  they need to verify their Property fields are updated https://developer.apple.com/documentation/devicemanagement/webcontentfilter ... View more