The keystone block is black and the fire triggers a ccl exception.

Do you have CTM installed?

CTM is required, however I know of a fix for non-CTM userd I might push later.

As for the fire...strange that I haven't come across this crash. Can you post a log?

OK so ctm fixed it thanks. I got this crash when a little while after i placed it this time. https://paste.dimdev.org/enucahiqeg.mccrash Here is the full log on the same launch that I crashed: https://paste.dimdev.org/lovolefiba.md

For context: when I reported, the fire didn't crash, it just didn't render and it said something in chat

Hmm, interesting, but at least it does give me something to work with. From what I can get at, entities don't seem to respond nicely to the fire, especially Rabbits.

So, regarding the console spam from CodeChickenLib, I have made some significant changes to how Gold Fire renders. However, I'm not sure if this will fix it since I'm not sure if it was something the block was doing itself, or CCL was altering. As for the crash itself, I tried to replicate it myself after implementing changes and haven't replicated that one, too.

Try this release if you want to check it as well.

Fixed both thanks