The siteworx filemanager logout button seems to log me out of nodeworx as well as the users’ siteworx account.
I have this problem to. Strange enough not always.
Maybe it will be fixed with the new version of Interworx !!?? 
Try clicking “Back to SiteWorx” instead.
Yeah, that’s obvious, and it’s what I usually do… But I just happened to click the Logout button this time, as I would do in SiteWorx - normally it would take me back to NodeWorx, but I guess not in FileManager…