one bug

[ginzu8888]

My English is not good only by translators，i from China
I have found smelting furnace in smelting steel ingot happens and brick sticking material removed in there can return, I do not know why, because I play mixed with everything on the line with the easy material jam problem, hope to solve
my system mac air 2014 up new system

[Loewchen]

I assume you have iron ore and stone both on your smelting belt which blocks the inserter sooner or later, this is not a bug, you will need to change your smelting setup to work with the games mechanics.