I've noticed that sometimes I can't close a window or tab by clicking on it with the cursor. It doesn't matter if I click or tap (both are enabled), nothing happens. The program isn't frozen, I can use Command + W to immediately close the window or tab. If I switch windows and attempt to use the cursor again, it will generally work and close the window/tab. My trackpad is not broken - I have no other problems with it, and the "tap to click" functionality should allow normal clicking functionality even with a defective trackpad. Does anyone have this problem? It's not really a significant problem, but it sometimes gets annoying.