Hotkeys don't seem to work on desktop Jitsi

Hello! I’ve been using Desktop Stable Jitsi 2.10.5550 on my Windows 10 PC for some time now and decided to bind some keys to Quick Answer/Mute. And though it’s possible to set it up in Options it simply doesn’t work. I’ve tried numerous combinations with no result whatsoever. One more thing I’ve noticed: Chat bindings, that are preinstalled and not changeable, also don’t seem to work(i.e ctrl+m for smileys). Does anyone know what could be the problem? Big thanks.