When admin is logged in, the admin-bar on website view is shown in the footer without CSS.
I checked the source against other websites & it seems like admin-bar-rtl.min.css is not loaded on my case for some unknown reason.
UPDATE:
I discovered that setting DISALLOW_FILE_MODS to false fixes the issue, but I can't leave it that way because it's a production environment & I don't want admins to install stuff...
-- Any idea?