I exited fullscreen, windowed version was quite small, and when I fullscreened again the buttons never resized.

When this bug occurred, I had no idea what to do, as changing the resolution in video settings made the screen blurry (picture a 360p video on YouTube). I tried setting the resolution manually in the launcher, but to no avail. Upon launching the latest release (I started on snapshot), and, after, launching a different version, the same issue occurred. To me, it appeared that the buttons did not resize correctly, but I cannot figure it out.