How can I configure winapps to allow switching keyboard layouts (languages)?

[o0omega]

I had just finished installing winapps to work on some assignments in excel, but I am facing keyboard layouts issue. I need to work in both Russian and English, but default shortcuts do not seem to be able to switch between layouts.
The issue only appears when launching the app using winapps, when launched natively in RDP the keyboard layout switching works perfectly fine with the default shift+alt shortcut after installing required language packet in windows settings.
Switching keyboard layout on linux itself doesn't have any effect.
Other discussion posts seems to be focusing on retaining a specific language, but not switching them with the shortcut, but maybe I missed something.