What happened?

I cant add the items with the +icon into the crafting upgrade from sophisticated backpacks idk why this happens, because sometimes(i think with less mods) it is working properly
and it also laggs a lot when opening the backpack idk why

What mod loaders are you seeing the problem on?

Forge

What do you think this bug is of?

• Visual
• Recipe Lookup
• Cheat Mode
• Plugin Integration / JEI Plugin Compatibility
• Others

Relevant log output

the game doesn't crash so no log

Anything else?

No response

By submitting this issue, I have included the necessary logs by pasting the contents into the correct location or attaching the file as an upload.

• Yes, and I did not use any paste services other than GitHub Gists.

By submitting this issue, I have confirmed my REI and REI's dependencies are up to date.

• Yes