Sadly, we aren't perfect. But we try to get there! In the latest release, we completely rebuilt the Language Manager. That's why some bugs might appear when using the Language Manager. The bugs listed here are being worked on.
Language names are always displayed in English. In the Confluence versions 7.0.X there is a problem with the display of the language names. All languages are displayed in English, regardless of the Confluence language. The problem is fixed in version 7.1. -Link to the Issue at Atlassian
There's a feature missing in the list that would increase the product's value for your company? Let us know!