MacOS 27 & Active Directory Network accounts sets ROOT as owner

Set up a new computer with MacOS 27 and joined it to Active Directory. Signed in with an AD account. The local home folder is created for the user but the users "Application Support" folder is set with ROOT as owner and the user (nor any application run by the user) cannot write to the folder. Various programs that require write access to the user's Application Support folder crash or fail. If the user manually takes ownership of the user's Application Support folder write access is restored and programs stop crashing.

I have never seen this with any prior version of MacOS. I have repeatedly erased AD user accounts and signed back in as the AD account and the same owner of ROOT is assigned the user's Application Support folder.

Just to clarify, this is not a problem with the OS Application Support folder but the user's Application Support folder.

Active Directory hasn't been recommended for a few years now. That world is now using MDM with Jamf or whatever that stuff is. What little I know about that is that nobody uses Active Directory anymore.

If you're doing this out of the goodness of your heart to try to help a needy international corporation with testing these edge cases, then go ahead and file a feedback report.

Anyway...

Just updated to MacOS 27.2.1 and tested again. New user and from this user's home folder I have a screen shot of the user's Library and the user's Library > Application Support. Library is owned by the user. But Application Support is owned by system (Root) and the user does not have write acess to their own Application Support folder.

Golden Gate Bridge Screenshot Image attached.

Also attaching Tahoe Screenshot showing the exact same folders after a brand new user signs in. In it the user's Library and the user's Application Support folder are both owned by the user.

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