Ah, unfortunately, this is another known issue with fresh installations. We’re already working on a fix. But the workaround is pretty simple - go to Settings and ‘Save’ them (even if it looks like you have no changes to save). It should fix labels for multilingual fields.
As for the translation issue, I’m afraid I didn’t fully understand the problem. Does the issue described in Translations in v2.0 - #5 by Lennart still persists even with 2.0.17? If so, could you please provide a few more details?