KB3213986 may cause "delayed or clipped screens" in 3D applications

I was just reading up on the newest Windows updates before pushing Install, and I noticed that KB3213986 has an entry in the "known issues" section that says this:

Users may experience delayed or clipped screens while running 3D rendering apps (such as games) on systems with more than one monitor. 

The article notes that running in windowed mode solves the problem, as does having only one monitor connected when starting the program. Still, this is something to take note of if you depend on fullscreen 3D programs working smoothly.