Describe the bug
When I shift-click crafting items to my inventory or backpack, the game crashes.

I am not using conflicting mods here.

Steps to reproduce the behavior:

1. craft backpack crafting "upgrade"
2. try crafting anything with it (e.g. sticks, planks, etc.)
3. press shift while you're crafting.
4. See error

Am using Forge for minecraft 1.19.2, forge version: 43.3.5

I will need the crash log

Have a similar issue in 1.20 on Project Architect 2 pack where when crafting in the inventory of the backpack I get the following error.

The game crashed whilst container click
Error: java.lang.NullPointerException: Cannot invoke "net.minecraft.world.item.ItemStack.m_41619_()" because "itemstack1" is null

Here are two crash logs from two different times

crash-2024-08-26_10.50.18-client.txt
crash-2024-08-25_22.39.46-client.txt

The older log crash-2024-08-25_22.39.46-client, I was crafting with the backpack in the curio slot and was crafting framed blocks with one click each time getting stacked into the hand.

The second log crash-2024-08-26_10.50.18-client I was attempting to craft an upgraded backpack from sophisticated backpacks. The first backpack level was completed without issues it was when I attempted to craft the second tier (iron) that it crashed after I picked it up with a regular left click.

Just had the crash again upgrading the sophisticated backpack from gold to diamond, on left click to collect the result the game crashed.

crash-2024-08-26_10.59.46-client.txt

Handling of erroneous recipes like this was released several weeks back so closing