Welcome to SolidWorks forums Afiq.
I don't see any issue with your settings, so might be a display glitch or something bad with installation. Please update the display card driver and check.
Just to verify does this happen with all drawings? Can you attach one sample part (plate with some holes/round cutouts) and a drawing which has issue to test on a different machine.
Please use "advanced editor" in case you want to attach any files.Click on reply and then click "use advanced editor".
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