Crashed when I picked up the coal with stack.
When I reboot and check my inventory, it is properly compressed, but crashes every time.

To Reproduce
Steps to reproduce the behavior:

1. Open backpack
2. Set Pickup&Advance Compacting upgrade
3. Set coal to both filter then pickup enough coal to make block
4. See error

Forge version:
1.18-forge-38.0.15

Using mod:
sophisticatedbackpacks-1.18-3.12.1.427.jar
curios-forge-1.18-5.0.2.4.ja

crash-2021-12-08_01.25.42-server.txt

This happened when I picked up a large amount of coal without any coal and coal blocks in my backpack, just set to filter.
I close here.

Reopening as this is issue I have fix for that is yet to be released

this is now fixed with the latest release