Versions

Betweenlands version:

3.4.0

Forge version:

forge-1.12.2-14.23.5.2768.

Singleplayer or Multiplayer:

Single Player

Installed mods:

grimpack 6.0.0.1
jei 4.12.1.217
thebetweenlands 3.4.0

Link to full crash log

https://pastebin.com/bceRfeNF

Description of the problem

I did not have this issue with BetweenLands 3.3.12. Today when I updated to version 3.4.0, I started
having client crashes when attempting to view anything from the GrimPack mod in JEI.
JEI and GrimPack do not have updates available.
I downgraded BetweenLands to 3.3.13 and 3.3.12 and this issue did not occur again.

The Specific error is:
net.minecraft.item.ItemAir cannot be cast to net.minecraft.item.ItemBlock

How to reproduce:

1. Look for something for GrimPack in JEI. (version 3.4.0 of BetweenLands)
2. client crashes

Expected result:

Be able to view objects from GrimPack in JEI

Actual result:

Client Crashes instead

Pictures:

N/A

Oh.

Fixed in dev

Fixed in dev

Is there a link to download the dev version?

We are about to release 3.4.1 soon but this dev build is the latest https://github.com/Angry-Pixel/The-Betweenlands-Development-Builds/releases/tag/dev-1.12-fixes-1241-01.11.2018