Mine too! I'm not sure if its a bug, but it is EXTREMELY confusing.
I'm not sure which mouse button to push because the instructions show the 'correct' button as darker (almost greyed out) from the 'incorrect' (seemingly highlighted) button.
In the attached picture, I would assume that I'm being told to click the right mouse button (or the middle mouse button). However, its actually the left mouse button that completes the action.
As someone who struggles with left and right this makes things extra hard