Unknownreported this bug
When using the SMITHING recipe crafting option on Mythic Crucible it gives a big error when you put the last required item in. the crafting does work like intended.
Error: https://pastebin.com/pXUXjDFN Config: https://pastebin.com/EAK0q3KS
If Additional info is needed, do shoot me a message Mikekevie