External keyboard and mouse is not recognized by a USB port but the USB port recognizes a plugged flash drive

[Jose_504]

So I have this legion 5 pro laptop and as what the title says, one of the usb port at the back is not recognizing my external keyboard or mouse.It started around January and got it fixed by then. (Lenovo replaced the motherboard which fixed the problem. They think it was bad port).Now, its back and I'm not sure why. It is basically the same problem as the one in January. The port would not recognize my keyboard or my mouse but it can recognize and transfer files from a flash drive or an external HDD. Other ports do not have a problem with the external keyboard and mouse.I should also note that

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