I blocked the nether using DimensionZ mod because Astages was acting right as promised for 1.20.1. I think the mod author left a broken version of Astages up for download.

Get the mod from www.curseforge.com/minecraft/mc-mods/dimensionz

Get the file in the video from kreezcraft.com/dimensionz-datapack/

Access the wiki from the video f0xmods.com/mods/wiki/dimensionz/
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