Can you force the "Filter as User" dropdown to refresh in Desktop? Mine does not match up with users on the server I am connected to but I can't find a way to get it to update.

I have never seen a glitch with the "filter as user" list except when I wasn't actually connected to the Server I thought I was. I've been using that feature since 2010. But I've always been an admin, so maybe you can't see all the users on Server if you're not.