Touch bar not lighting up... UGH!

Hi there, hoping someone can help. When I log into my MacBook Pro after it's been sleeping, my touch bar will not light up! I've tried opening the keyboard settings but nothing. I can restart my Mac and it will light up, but I shouldn't have to! One thing to note is that the keys still work... so if I hit the "esc" button on the far left, the action is performed. But I don't have the placement all memorized.... How do I get my touch bar to light up?? This is very frustrating to say the least! Thank you for your help.