TFS 2012 Update 1: Permissions lost on attaching a collection–fix available

I’ve had some customers that are experiencing this issue so wanted to get it out more broadly in case you are having similar problems.  Buck Hodges has written a blog post on symptoms and resolution here:


The KB article can be found here:


There are several other issues fixed with this TFS Update.  Here is the list of issues that are fixed (for more detail go to the KB article):

Issue 1: Collections that are attached to a server that is running TFS 2012 Update 1 may lose permissions


Issue 2: Group scopes may incorrectly cause permission errors


Issue 3: Severe decrease in performance after TFS 2012 Update 1 is installed


Issue 4: Identity sync jobs may fail repeatedly


Issue 5: Warehouse is not updated correctly, or fields that represent a person are not filled


Issue 6: Users can see names of collections of which they are not a member


Issue 7: You cannot remove a user or a group after you attach a collection to a TFS 2012 Update 1 server


Issue 8: You cannot view artifacts that reference an identity that is no longer a part of a collection