We use NPM 10.1.1 SP1.
Since we upgraded to this version, there is a strange behaviour. Without apparent reason my user changes from an admin-account to a non-admin while editing a node (using the Manage Nodes option). The "new" user is even displayed in the upper right corner where you can see who's actually logged in. It doesn't matter whether I use Internet Explorer or Firefox.
This behaviour is not predictable. Sometimes it works, sometimes it doesn't. It is extremely annoying, especially when trying to unmanage nodes because of maintenance.
Is this a well known behaviour or am I the only one?