The Alloy blast smelter isnt working, it is set up correctly (as far as i can say from the tooltip) and nothing blocks the muffler hatch. I tryed out the recipe with should turn energetic alloy dust into its liquid form, i provided the needed energy (mv, direkt connection of the battery buffer with the energy hatch, 4 amp, recipe only needs 1 amp mv). The machine starts, consumes the dust (right circuit is in the input hatch) but stops nearly instand without producing anything. Machine is fully repaired.

Please report the issue properly.
https://github.com/draknyte1/GTplusplus/wiki/Github-Issue-Format