I was just trying to update uScript when I encounter this problem. I followed the procedure from uScript developer as stated on their website to delete the old uScript extension in Project menu, go to Asset Store and press update, and I encounter the SAME problem “Already up to date” (since beginning of Asset Store). I force update by choosing “Download Anyway” and now it tells me “You must activate your account”. I have activate my account 3 times through Asset Store email verification system now, and I still can’t update and it still give me the same “Already up to date”, and “You must activate your account” messages. Something is seriously screw up with Unity Asset Store.
EDIT: I have just updated to the latest Unity 3.4.1 from 3.4.0 and still having the same problems.
Unity didn’t fix anything. Its already several versions now (3 versions?) since Asset Store was introduced and I am still having problems with it. I have to force download every single time to update my extensions and now its asking me to activate my account even though I re-activated it 3 times in a roll and it still won’t let me update.