It seems that in my cave I was digging, when I adjusted my vision from a group of particular stone blocks the rendering in the corner seemed to have cut out. I attempted to recreate it in survival and creative in other environments but I could not. Reloading the game or level had no resolve.
Seed: -8490482450382478731
Coordinates Standing: X: -60.279 Y: 53 Z: 192.54
Coordinates Looking at: X: -60 Y: 53 Z: 194
Facing: South (towards positive Z) (-31.3 / 38.6)
Lighting: 6 (6 sky, 0 block)