OS : Windows 8.1 Pro 64bit
CPU : AMD FX(tm)-6300 Six-Core Processor 3.50 GHz
GPU : GeForce GTX 750 Ti/PCIe/SSE2
RAM : 8 GB DDR3
Java : JDK 1.8.0 Update 144 x64
My computer has two monitor setup, when in Fullscreen mode and do something another monitor for a moment. Open Minecraft window again chunk aren't rendering until move the mouse.
MC-121456 Chunks disappearing after switching windows in fullscreen mode