Something weird happen... I translated the Coursepress plugin in French, and following your instructions, added this plugin in "mywebsite.com/wp-content/plugins/coursepress/languages"... It was working, so I'm sure I didn't do any mistake.
Then, a few weeks later, we discovered that this translation stopped displaying, and the .mo et .po french files of the translation also disappeared in the "languages" folder.
I added those files back and the translation is displaying again, but it's weird. I didn't do anything to the website except the regular update. Would it be possible that an update removed these translation files ?
Technically, the translation system with .po and .mo files on the "languages" folder should be update proof, isn'it ?
Any idea of what could have gone wrong, so we can make sure it doesn't happen in the future ?
Thanks a lot.