Cardboard box with a redstone block inside it crashes to desktop

[18:30:59] [Client thread/INFO] [STDOUT/]: [net.minecraft.init.Bootstrap:func_179870_a:560]: ---- Minecraft Crash Report ----

WARNING: coremods are present:
LoadingHook (Mekanism-1.10.2-9.1.1.290.jar)
CXLibraryCore (cxlibrary-1.10.2-1.2.2.jar)
NWRTweak (redstonepaste-mc1.9.4-1.7.4.jar)
DepLoader (BrandonsCore-1.10.2-2.1.0.36-universal.jar)
CodeChickenCorePlugin (CodeChickenCore-1.10.2-2.1.8.79-universal.jar)
MalisisCorePlugin (malisiscore-1.9.4-4.1.1.jar)
IC2core (industrialcraft-2-2.6.44-ex110.jar)
CorePlugin (FluxedRedstone-2.3.0.48.jar)
CCCDeobfPlugin (unknown)
FMLPlugin (InventoryTweaks-1.61-58.jar)
TransformerLoader (OpenComputers-MC1.10.2-1.6.0.3-rc.1.jar)
CCLCorePlugin (CodeChickenLib-1.10.2-2.2.3.60-universal.jar)
EnderCorePlugin (EnderCore-1.10.2-0.4.1.51-beta.jar)
ShetiPhian-ASM (shetiphiancore-1.10.0-3.3.0.jar)
Contact their authors BEFORE contacting forge

// Would you like a cupcake?

Time: 8/23/16 6:30 PM
Description: Rendering screen

java.lang.NullPointerException: Rendering screen
at net.minecraft.item.ItemStack.func_82833_r(ItemStack.java:503)
at mekanism.common.item.ItemBlockCardboardBox.func_77624_a(ItemBlockCardboardBox.java:55)
at net.minecraft.item.ItemStack.func_82840_a(ItemStack.java:610)
at net.minecraft.client.gui.GuiScreen.func_146285_a(GuiScreen.java:136)
at net.minecraft.client.gui.inventory.GuiContainer.func_73863_a(GuiContainer.java:166)
at net.minecraft.client.renderer.InventoryEffectRenderer.func_73863_a(InventoryEffectRenderer.java:51)
at net.minecraft.client.gui.inventory.GuiInventory.func_73863_a(SourceFile:47)
at net.minecraftforge.client.ForgeHooksClient.drawScreen(ForgeHooksClient.java:382)
at net.minecraft.client.renderer.EntityRenderer.func_181560_a(EntityRenderer.java:1094)
at net.minecraft.client.Minecraft.func_71411_J(Minecraft.java:1076)
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:371)
at net.minecraft.client.main.Main.main(SourceFile:124)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at net.minecraft.launchwrapper.Launch.launch(Launch.java:135)
at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

I'm getting the same crash in AllTheMods when mousing over a box that contains a skeleton spawner, and one that contains a door (not sure what type)

I updated All The Mods and this seems to have stopped happening for the spawner. The tooltip now shows normally. But the box with the door still crashes when mousing over it.

Box with a fishing net (from Fishing Net Mod) causes crash. If it's not in your hotbar, then there is no way to get rid of it because mousing over it causes a client crash.