crash with autocrafting

[krisdeds]

it would seem that the cascaded craft development brings this crash
wrought

impossible to return to the game

• Minecraft: 1.10.2
• Forge: 1.10.2-12.18.2.2118
• Refined Storage: 1.2-beta6
  wWKhvdLM.txt

[raoulvdberge]

java.lang.NullPointerException: Ticking block entity
    at com.raoulvdberge.refinedstorage.api.util.IItemStackList.remove(IItemStackList.java:40)
    at com.raoulvdberge.refinedstorage.apiimpl.autocrafting.task.CraftingStepCraft.execute(CraftingStepCraft.java:111)
    at com.raoulvdberge.refinedstorage.apiimpl.autocrafting.task.CraftingTask.update(CraftingTask.java:327)
    at com.raoulvdberge.refinedstorage.tile.TileController.func_73660_a(TileController.java:269)
    at net.minecraft.world.World.func_72939_s(World.java:1804)
    at net.minecraft.world.WorldServer.func_72939_s(WorldServer.java:619)
    at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:709)
    at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:613)
    at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:149)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:471)
    at java.lang.Thread.run(Unknown Source)