Strange behavior with frags in furnace

When I place ore in the furnace and come back to the furnace splitter screen I suddenly have lots of frags. Furnace also seems to keep running continuously. Config is set to defaults. Tried reloading plugin but problem persists. Does not seem to be an issue with sulfur. Have not tested with HQM. Please advise.

Disregard. Had a custom plugin messing with it.