Hi,

I disabled the RF Upgrade and get the following in the log:

[13:32:01] [main/ERROR] [jei]: Recipe has no output. Furnus furnus:upgrade|6#1_2691
Outputs:
net.minecraft.item.ItemStack: [[]]
Inputs:
net.minecraft.item.ItemStack: [[], [1xitem.yellowDust@0 minecraft:glowstone_dust], [], [1xtile.blockRedstone@0 minecraft:redstone_block, 1xtile.chisel.redstone@0 chisel:redstone, 1xtile.chisel.redstone@1 chisel:redstone, 1xtile.chisel.redstone@2 chisel:redstone, 1xtile.chisel.redstone@3 chisel:redstone, 1xtile.chisel.redstone@4 chisel:redstone, 1xtile.chisel.redstone@5 chisel:redstone, 1xtile.chisel.redstone@6 chisel:redstone, 1xtile.chisel.redstone@7 chisel:redstone, 1xtile.chisel.redstone@8 chisel:redstone, 1xtile.chisel.redstone@9 chisel:redstone, 1xtile.chisel.redstone@10 chisel:redstone, 1xtile.chisel.redstone@11 chisel:redstone, 1xtile.chisel.redstone@12 chisel:redstone, 1xtile.chisel.redstone@13 chisel:redstone, 1xtile.chisel.redstone@14 chisel:redstone, 1xtile.chisel.redstone@15 chisel:redstone, 1xtile.chisel.redstone@0 chisel:redstone1, 1xtile.chisel.redstone@1 chisel:redstone1, 1xtile.chisel.redstone@2 chisel:redstone1, 1xtile.chisel.redstone@3 chisel:redstone1, 1xtile.chisel.redstone@4 chisel:redstone1, 1xtile.chisel.redstone@5 chisel:redstone1, 1xtile.chisel.redstone@6 chisel:redstone1, 1xtile.chisel.redstone@7 chisel:redstone1, 1xtile.chisel.redstone@8 chisel:redstone1, 1xtile.chisel.redstone@9 chisel:redstone1, 1xtile.chisel.redstone@10 chisel:redstone1, 1xtile.chisel.redstone@11 chisel:redstone1], [1xitem.ingotIron@0 minecraft:iron_ingot], [1xtile.blockRedstone@0 minecraft:redstone_block, 1xtile.chisel.redstone@0 chisel:redstone, 1xtile.chisel.redstone@1 chisel:redstone, 1xtile.chisel.redstone@2 chisel:redstone, 1xtile.chisel.redstone@3 chisel:redstone, 1xtile.chisel.redstone@4 chisel:redstone, 1xtile.chisel.redstone@5 chisel:redstone, 1xtile.chisel.redstone@6 chisel:redstone, 1xtile.chisel.redstone@7 chisel:redstone, 1xtile.chisel.redstone@8 chisel:redstone, 1xtile.chisel.redstone@9 chisel:redstone, 1xtile.chisel.redstone@10 chisel:redstone, 1xtile.chisel.redstone@11 chisel:redstone, 1xtile.chisel.redstone@12 chisel:redstone, 1xtile.chisel.redstone@13 chisel:redstone, 1xtile.chisel.redstone@14 chisel:redstone, 1xtile.chisel.redstone@15 chisel:redstone, 1xtile.chisel.redstone@0 chisel:redstone1, 1xtile.chisel.redstone@1 chisel:redstone1, 1xtile.chisel.redstone@2 chisel:redstone1, 1xtile.chisel.redstone@3 chisel:redstone1, 1xtile.chisel.redstone@4 chisel:redstone1, 1xtile.chisel.redstone@5 chisel:redstone1, 1xtile.chisel.redstone@6 chisel:redstone1, 1xtile.chisel.redstone@7 chisel:redstone1, 1xtile.chisel.redstone@8 chisel:redstone1, 1xtile.chisel.redstone@9 chisel:redstone1, 1xtile.chisel.redstone@10 chisel:redstone1, 1xtile.chisel.redstone@11 chisel:redstone1], [], [1xitem.ingotGold@0 minecraft:gold_ingot], []]

Which isn't something really problematic, but Better Questing causes a crash

java.lang.RuntimeException: Item "furnus:upgrade" (mrriegel.furnus.item.ItemUpgrade) threw a fatal error during search! Please report this to the item's developer(s). at betterquesting.api2.client.gui.panels.lists.CanvasItemDatabase.updateSearch(CanvasItemDatabase.java:159) at betterquesting.api2.client.gui.panels.lists.CanvasItemDatabase.drawPanel(CanvasItemDatabase.java:64) at betterquesting.api2.client.gui.panels.CanvasEmpty.drawPanel(CanvasEmpty.java:52) at betterquesting.api2.client.gui.panels.CanvasEmpty.drawPanel(CanvasEmpty.java:52) at betterquesting.api2.client.gui.panels.CanvasTextured.drawPanel(CanvasTextured.java:27) at betterquesting.api2.client.gui.GuiScreenCanvas.drawPanel(GuiScreenCanvas.java:186) at betterquesting.api2.client.gui.GuiScreenCanvas.func_73863_a(GuiScreenCanvas.java:112) at net.minecraftforge.client.ForgeHooksClient.drawScreen(ForgeHooksClient.java:381) at net.minecraft.client.renderer.EntityRenderer.func_181560_a(EntityRenderer.java:1124) at net.minecraft.client.Minecraft.func_71411_J(Minecraft.java:1118) at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:397) at net.minecraft.client.main.Main.main(SourceFile:123) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at net.minecraft.launchwrapper.Launch.launch(Launch.java:135) at net.minecraft.launchwrapper.Launch.main(Launch.java:28) Caused by: java.lang.IllegalArgumentException: Invalid item stack "0xtile.air@6" registed to creative search tab! at betterquesting.api2.client.gui.panels.lists.CanvasItemDatabase.updateSearch(CanvasItemDatabase.java:125) ... 17 more
crash-2018-10-09_13.29.03-client.txt

that was fast, thanks :-)