Hi folks Recently my Preview on my MacBook Pro has begun doing this insanely annoying, weird "flickering". It makes it impossible for me to read texts and is generally just really annoying. It does it every time Preview either auto saves or when I save manually. In class the other day, I noticed my friends older MacBook Air did the same thing. I'm working with a Macbook Pro 13" TB 2016. I uploaded a video showing the problem: Any suggestions? Thanks in advance. EDIT: Just noticed there is an available update 10.12.3. Will update as soon as possible and update thread if it solves the issue EDIT2: Updated to 10.12.3. Same issue.