Missing Buttons on Touch Bar

Not sure if this is due to BetterTouchTool but I have to ask. My Touch Bar is missing the right most 2 buttons. If I press the fn key then I see a portion of F11 but not all of it. Everything to the right of that is black. But I know what should be there and if I click on the area of that black portion it still works. I just can't see it. Is this a software issue or a hardware issue? Any help in isolating this frustrating problem would be appreciated. Thanks