I added Cathedral to my pack to test it (and look at its blocks, since there's no preview images yet) but found that I could not craft the Dwemer blocks. No crafting recipe shows up in JEI (the chiselling recipes work fine).

I checked the code, and found the recipe as registered in Dwemer.java: eight basalt surrounding a metal ingot. AFAICT my pack does not include any items dictionaried as ingotDwemer, ingotDawnstone, ingotBronze, or ingotBrass, so the fallback is presumably the basic ingotGold. I double-checked that the gold-ingot recipe doesn't work by putting it into the crafting table anyway (in case it was just JEI missing it) but it also failed.

My pack does not contain any mods from the Thermal series, but it does contain some other mods that might themselves include compatibility code for some of the referenced metals; IIRC molten bronze for Tinker's Construct exists despite neither bronze nor tin being added by any extant mod—it may be a multi-mod compatibility issue.

I'll try to help narrow down the issue by copying my pack to a new instance and whittling down the modlist to the mods necessary to duplicate it.

I interestingly did not have this issue with a test pack with just JEI, Chisel w/ prereqs, and this mod.

That is interesting actually. I wonder why nihiltres is having a problem then.

I'm unable to reproduce this problem. I ran the mod with only Cathedral, CTM, Chisel, and JEI and I can craft the Dwemer block with a gold ingot. You might want to double check and try again otherwise I'm afraid you'll need to find the origin of the problem yourself and report back with new information.

Tracked it down to a minimal instance; it occurs if Botania and basically nothing else is installed. Here's the minimal instance modlist:

• AutoRegLib (Botania dependency)
• Baubles (Botania dependency)
• Botania (Botania itself)
• Cathedral (duh)
• Chisel (Cathedral dependency)
• CTM (I always leave this installed if using Chisel)
• Just Enough Items (ease of testing)

If I disable Botania but leave its dependencies, then the problem doesn't occur.

I'll save you a little time and link to a search of the Botania repo for "brass". Not sure why that's there as Botania doesn't use brass as far as I know.

So that...initializes an ore dict entry, making the mod think there's brass when there actually isn't?

I don't think there's much I can do about this. Other mods expecting ingotBrass to work(which should be a reasonable expectation) would also be broken by Botania.

I'm going to hot potato this one over to Forge. Botania is simply using the forge json ore dict ingredient format, so there's nothing really we can do to fix it. the real bug is forge creating empty entries from these ingredients.

Also, couldn't this mod check if ingotBrass has any real entries? (i.e. the list is nonempty)

I can give it a shot if it will expedite getting this out of way.

I added code to check if the ore list is empty.

Any chance this fix will be uploaded soon?

As a temporary fix I just used a crafttweaker script to add the recipe back in, but it would be nicer if it worked out the box. No rush of course, just wondering if it'll be updated soon :)