So I'm working on some MacBooks that live on shared carts at work. I've been deleting all the config profiles pushed by Profile Manager and replacing them with the same config profile with only a minor tweak (added icon to Dock, different desktop background), except pushed by Munki. On *most* of the systems, this works just fine and gives me my updated settings. However, on about 40% of them, this causes the AD user that students use to log itself out immediately at login. I'll enter credentials, it'll log in, display the desktop, then go back to the login screen with the same animation as in fast user switching. If I log in again, same thing endlessly. I've tried tweaking the profile, I've tried deleting the AD user from the local directory, I've tried deleting the home folder, I've tried deleting /Library/Managed Preferences, I've tried deleting and reinstalling the profile, I've tried deleting the contents of /Library/Caches/, I've tried all of this both together and apart. No matter what I do, this user always logs itself out. Interestingly, ONLY the K-3 student AD user account causes this issue. A staff account doesn't cause the issue. A 4th grade student user account doesn't cause the issue. Just the account shared by K-3 students. Any advice?