Recently I've installed Ubuntu 15.04, everything had worked fine, but suddenly language change stopped working. I don't know what could be the cause of this, because I didn't notice it right away. Now, I've tried to assign different shortcuts to language change, I've tried to use language icon in the top right corner and simple reboot of course. Nothing seems to work. Could you please tell me what could be wrong and what can I do with it?
UPD: forgot to mention that in the top menu my second language(Russian) is present and I even can choose it, but when I type it's still English. UPD2: I've tried to add another language and even change order of input sources, but it didn't work out either. My input language is always English.