I am getting: Saving the translation failed: Unknown error occurred.
After fresh edit of untranslated message, at first the translation shows up almost as expected (it's on yellow background), but then it stays unsaved and it's gone (as warned by a pop-up message), when I leave the page.
Not sure if the fact, that I am a new user, have something to do with it.
I Will wait a bit and will retry tomorrow, but if anyone have a solution for that problem, I am all ears.
p.s.
It's the Download page.
p.p.s.
There is a content on the page (in the Latest release section) which doesn't show at all for translation ( the stuff under System Requirements and License).