I need to change a couple of strings in our company's Moodle site to our internal terminology but when I go to site admin > Language > Language customisation I have nothing in the "Choose..." drop-down. I checked and we have 3 languages installed. I also checked the Server environment page and everything is marked OK. We are using Moodle 3.0.2. My other (personal) 3.0.2 site has the languages in the drop-down but they're not there in our real server (or our test server which is a copy of prod). Can anyone provide any insight as to why? I'm stuck.