JER doesn't show custom ores in JEI

[lAimBotl]

Modded ores that got scanned don't show up in "world gen" in JEI in game.

It also misses some modded ores like Immersive engineering ores in the worldgen file.

Versions:

• jei-1.20.1-forge-15.14.0.64
• emi-1.1.12+1.20.1+forge
• JustEnoughResources-1.20.1-1.4.0.247
• Region scanner v0.3.5
• Mc 1.20.1
• Forge: 47.3.7

World Gen .json File (put in /config folder of modpack)
world-gen.json

[RundownRhino]

You seem to be using an extended world height - some entries like minecraft:mossy_stone_brick_slab go up to index 380 (which is something like a height of 324). JER doesn't support this, and will raise an error like this one:

[Render thread/WARN] [jeresources/]: Error during loading of DIY data
java.lang.ArrayIndexOutOfBoundsException: Index 320 out of bounds for length 320

This isn't really something I can fix, as it's fundamentally a limitation of JER's format. I could in theory generate world-gen.json files for such worlds that would be valid, but that'd mean discarding all the data above y=256.

Interestingly enough, if I replicate your setup (including EMI), I don't get the error in question (I only do when I disable EMI). Probably EMI breaks JER's intergration and so it never ends up even trying to load the file.

[RundownRhino]

This is very similar to issue #11, except there the issue was that some worlds can go below -64, and here the issue is that some worlds can go above 256. Guess I can handle it the same way - discard all the data that JER can't show and print a warning about it.

[RundownRhino]

Should be fixed in 0.3.6, in the sense that the generated world-gen.json will omit heights above 255 and thereby be compatible with JER.

[RundownRhino]

It also misses some modded ores like Immersive engineering ores in the worldgen file.

This seems like a different issue - please elaborate if you're still experiencing it. I don't spot anything missing on a cursory glance.