LG G4 :: Vertical Screen Freeze Randomly

New Android user here and new to the LG family. Finally settled on the G4 after comparing a few different Android phones. Got the phone home, let it charge, updated the phone, and set up all my accounts and apps. However, not 10 hours into owning the phone, I've now come across a problem - the whole left side of the screen (50% of the screen in vertical) randomly will freeze, making the phone look like it has had a stroke. Sometimes the freeze lasts for a few seconds, sometimes for several minutes, before it freezes on another screen. The weird thing is that the right side of the screen still works and acts as if nothing is wrong on the left. I plan on returning the phone tomorrow, but I'm seriously concerned as to whether this will happen again if I get another G4.