Okay so I tested this out on my paper server on an existing world (I know, bad idea but I saved a backup first) and it worked. Server crashed after a while, with error "Description: Feature placement
java.lang.IndexOutOfBoundsException: Index (0) is greater than or equal to list size (0)" but it's back up and running now.

All in all, this is a great pack. I just wish the transition into the sky islands were less like entering the nether or another dimension where you just pop up there, and more like you're actually flying into the dimension. The islands overworlds datapack has it where you just fly into the dimension, but your islands are better in my opinion so I'll be sticking with yours.

This looks gorgeous with volumetric clouds. *__*

how to uninstall ? also nice pack , but i don't really need it on my server :)

I lost the airplane I was riding on the way up :( Is there a way to make it so modded mounts travel with you in relation to your location below instead of spawning directly on an island? Same thing happened on the way down with an airship both using the immersive aircraft mod

Doesnt work this is absurd i thought it would but no it doesn't unless it uses player json

Do mobs spawn. I cant really tell when im using it

Please make a tuto to remove this Datapack !!!! It corrupted all my world i can't even start my server now i just removed the datapack like a classic datapack WTF have u done it destroys my world!