My official surface pro type cover falls asleep while charging

I recently purchased a surface pro 7 type cover from amazon. It’s been working great, but the keyboard seems to ‘fall asleep’ while the charger is plugged in. I have to press a key, then 3-5 seconds later the back-light comes back on and input is recognized again. My first thought was maybe the power settings in windows were configured so that the keyboard turns off to save battery, but I couldn’t find any settings concerning the keyboard. If anybody has any suggestions, please feel free to comment!