Mouse buttons (middle, side, double click) remapped after software update

Hey, I have a weird problem. After the last software update (macOS 10.15.4) my mouse buttons has just remapped and doesn't work properly now. The middle click turns off/on system sound instead of opening a link in a new tab. Side buttons, that previously functioned as back/forward website tab navigation, now function as back/forward songs nav. Double click button pauses/resumes music/video. So basically, everything seems like remapped to control the system sound. 

I'm using gaming mouse from Yenkee. Previously, before the update, it was fine. Moreover, I've tried to remap those buttons with tools like MacMouse Fix or BetterTouchTool, but it just not "recognize" those buttons as a mouse buttons (witch is really weird).