Fog generates only in the centre of the screen

What I expect to happen: the fog, once set, should not change depending on the angle of view.

What actually happened: landscape elements are visible when not in the centre of the screen but disappear when in the centre of the screen, without changing anything in the game viewing parametres. See the smaller island (the right one) on the attached screenshots. They all were taken from the same place, -1514 80 3823 on the map with the seed -435130594162764786.