Very often the keyboard and mouse will have some error and functional buttons/customizations will stop working. It will require me to restart my entire computer (even turn the Logi devices and reconnecting them to bluetooth doesnt do anything). Some things that done end up working are the scrolling on the mouse, the custom mapped functions on the keyboard, the custom button shortcuts on the mouse and all my other settings such as the scrolling directions. Please fix it because its really really irritating to deal with and having to restart my computer because of my mouse/keyboard issues.