https://pastebin.com/aix5Xyy7

What modpack is this? It probably changes the spawn rates of the old portal structures, which don't exist anymore. So that config has to be changed. It might be a datapack added to the world or some other structure configuration option.

true

removed kubejs script

{ "type": "minecraft:jigsaw", "biomes": "#minecells:valid_portal_biomes", "step": "surface_structures", "spawn_overrides": {}, "terrain_adaptation": "beard_thin", "start_pool": "minecells:portal", "size": 1, "start_height": { "absolute": 0 }, "project_start_to_heightmap": "WORLD_SURFACE_WG", "max_distance_from_center": 5, "use_expansion_hack": false }

thanks