First and foremost: This problem only appears for Windows users having their taskbar placed on the right, left, or top side of the screen.
It appears that when I hover my mouse over the left side of the screen, where my taskbar is (as it is placed there), the regular Windows mouse cursor appears and separates from the CIU cursor. Upon clicking with the Windows cursor, CIU minimizes. In-game, the ship doesn’t go to the side where the taskbar is placed as well. While yes, this doesn’t affect much when it comes to ship’s maneuverability, any attempts to fire with LMB minimies the game.