In the recently released version of nullscape for 1.18.2, I have encountered a couple major issues that appear with only nullscape being the only mod installed that alters the end in any way.
Nullscape version: 1.1.2
Forge version: 40.2.0
Issues noted:
-When the Ender dragon is killed using /kill, it does not properly die, and is instead just removed from the game, which results in the end portal not generating, and also the outer gateways to not generate either.
-The outer end landscape generates partially inside the area surrounding the main end island, causing parts of the end islands to generate using the minecraft:the_end biome rules instead of the rules for the actual end landscape. Because of the placement of this section, the end gateway the player travels through spawns in this area too.
-The end is stuck with a fixed seed, and generate the same terrain for every world.
Images attached, to demonstrate both the fact that the end is using the same seed regardless of world seed (Images are from two different worlds) and also the fact that there is a segment of the end islands that generate with the same worldgen as the central island, and that there is a noticeable cutoff between these two areas.

