Weird columns in water and discolouration.
There is a weird bug, when some non-full blocks are in the air, and a block is above them, they discolour the ground beneath them, and create columns from the bottom to the surface of the water, instead of appearing normally where they should be, they are also just not there in some situations (e.g. too close to the ground), I've made a bug report for it: https://gitlab.com/distant-horizons-team/distant-horizons/-/issues/1290 It looks really weird from afar, especially when I'm making such a huge structure above water.