I just realize that there is already that problem and it was resolved (by wrong search). So, when i did the update, I updated nginx too. So here the post :
So it solved.
[Solved] Categories permissions
When i set permissions on a category, it creates new groups (cid:2:privileges:g+r and cid:2:privileges:g+w)
have a look on my category permissions :
I noticed the same thing today after a git pull
Please update to latest, I messed up @ https://github.com/designcreateplay/NodeBB/issues/992 so we will refix this one properly by hardcoding administrators and registered-users to be visible only
Haha hey, I just noticed you threw in a [Solved] tag into the title. Nice touch.