U2419H, automatic color temperature change

The color temperature of the screen changes automatically when the monitor is watching the video or when playing the game, sometimes it is yellowish and sometimes greenish. And any settings or software methods are not helpful. This phenomenon is very common. Users who have 20 identical phenomena have been found. If it is not a hardware problem, it is expected to be repaired by the firmware update of the display. Looking forward to the engineer's reply.