Steps to Reproduce the Bug

1. open inventory and add click search bar
2. press right shift key and 2 key

Expected Behavior

an @ character is input into search bar

Actual Behavior

Search bar loses focus with nothing inside

Mod Pack URL (Optional)

No response

Mod Pack Version (Optional)

No response

Extra Notes (Optional)

I'm playing modpack when I found this, but it remains after I delete all other mods.
#3347

latest.log

https://gist.github.com/reserveword/be1c87b81aab8a620d42a8a060e76ae8