Issue description:

Server crashed when shift scrolling in crafting terminal

What happens:

Server crashed

What you expected to happen:

Steps to reproduce:

1. Shift scroll in crafting terminal

...

Version (make sure you are on the latest version before reporting):

• Minecraft: 1.16.3
• Forge: 34.1.22
• Refined Storage: 1.9.7

Does this issue occur on a server? [yes/no]
yes

If a (crash)log is relevant for this issue, link it here:

https://pastebin.com/Jymh2Zs8
[pastebin/gist/etc link here]

Already fixed for the next version!