New Naga Pro loose/rattling left click normal?

Hey, So I've owned two of these mice and both have had the same issue. I believe the first one had the left and right clicks effected while this one has just the left click that's loose. This can't be how the mouse is meant to be surely? The issue is, the slightest touch to the mouse sounds like one of the old trackball mice; loose and noisy. I've included a video comparing 3 other mice and none come close to it. If somebody could let me know if this is "normal" please as I'm within my return window. Also if there's a well known, incredibly simple and durable fix, please also let me know. https://drive.google.com/file/d/1TJxf1evWGJCRuyqJTyPZHFLw5bWkrQsC/view?usp=sharing - compared against 4 other mice https://drive.google.com/file/d/1T8XlrO-ROTMU2oYzs9hZkEApP3EClxcI/view?usp=sharing - front on view of click buttons Cheers!