I'm trying to configure the generation of gold ore in the nether.
Using "gold_ore" in the "ore property mods" config section I got a zip to work with.
I then created and added a WorldGenProperties.json to configure the generation:

{
	"blockCount" : 9,
	"chance" : 2,
	"minHeight" : 0,
	"maxHeight" : 32,
	"dimensionList" : [-1],
	"dimensionsAreBlacklist" : true,
	"additionalPropertyKeys" : ["netherProperties"],
	"netherProperties" :
	{
			"blockCount" : 9,
			"chance" : 40,
			"minHeight" : 0,
			"maxHeight" : 128,
			"dimensionList" : [-1]
	}
}

If I understand correctly this should allow gold ore to spawn from 0 to 128 in the nether but it's not the case.
I checked multiple times using world stripper and other worldgen settings but gold never appears above Y = 32.

Huh. I actually have a very similar setup that I use to test this feature with coal ore. Just retested and could not reproduce the issue. Anyway you could share your exact file structure with me?

Alright here is my config, as you can see I added gold_ore for netherrack and basalt in the "variant_adder" section.
In the "ore_stone_variants_mods" folder I have an archive named "minecraft_gold_ore.zip" which contains three files at the top level:

• OreProperties.json (left untouched)
• RecipeProperties.json (left untouched)
• WorldGenProperties.json (contents posted above)

Oh okay, I see. You need to use the original name of the ore properties, which in this case is just gold_ore and not minecraft_gold_ore. I know that's confusing and wish I could improve on that. When I eventually update to 1.14 or so, I'll be reworking a lot of these systems.
Let me know if this does or does not work, though.

It works, thanks a lot for the quick response.
I would never been able to figure this out by myself since the archive name is auto generated.
Keep up the good work, your mod is awesome!

Oh cool. Thank you so much for the feedback! Feel free to join the Discord server, if you need help with anything else. https://discord.gg/fmnQgy