Error saving languages in product

When saving a product in another language, the box overwrites other languages... https://lums.crm-onebox.com/app/product/597/edit/ here is the goods. title, description, keywords was in Russian.. switched to English, entered all these meanings into English there, saved, switched to Ukrainian, also wrote everything in Ukrainian there, saved ... returned to Russian, and voila .. now the name, description has become all in English .. why is that? everything was preserved in Ukrainian and Eng, but the Russian was reset?? if right now to overwrite in the Russian version everything again in Russian, then it is saved correctly [file]12817[/file]