This is happening with regular furnaces
Please fix this annoying bug
I experienced this issue yesterday. A work around is not a bug resolution, why is this marked as resolved? Please fix this bug!
This bug is now in the 1.13 release on Xbox One
It appears to be fairly random clusters. I will upload a screenshot soon.
I think I have narrowed this down to when you are exploring with new world. I get a ton of lag whenever I am loading up new world. Especially if I am playing on another host.
This happens using a regular furnace.