Had this a couple of times where an FSLogix profile disk seems to get locked. The user is not logged onto the host, but the profile disk still shows in Disk Management and the user cannot log back on.
When trying to detach the profile disk in Disk Management I get an Access denied message and the only way for the user to log back on is to reboot the host.
Is there a way to forcibly detach an FSlogix profile disk without having to reboot the host?!