This is an old issue: when I open the application, the language automatically switches to Russian. I have two languages configured in my system: English and Russian.
When the application window is open, the language switcher does not work when I press Alt+Shift. After closing the application window, the language switcher works normally.
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UOS AI Hardware Diagnostics 
I found two issues:
This is an old issue: when I open the application, the language automatically switches to Russian. I have two languages configured in my system: English and Russian.
When the application window is open, the language switcher does not work when I press Alt+Shift. After closing the application window, the language switcher works normally.