For some reason, this mod conflicts with the stone/gold/diamond tool textures from LithosCore resource pack (https://mods.curse.com/texture-packs/minecraft/lithos-core-32x-1-6-1-10-complete).

All of those tools have a "no texture" icon.

It uses a json file to change the texture based on durability on all tools, so I'm not sure why it's specific to those 3 types only. No other tools are affected.

His json files are broken, Chisel is choking on them. I don't see a need to allow chisel to parse invalid json like vanilla apparently does.

For reference, all the affected models have an extra brace at the end.

On second thought, I'll add some safeguarding around this, and let vanilla handle the errors. But he should still fix his json.

Ok, I'll let him know about the problem. Thanks,