Steps to Reproduce the Bug

Go into your inventory, click search box, does not let you type.

Expected Behavior

You should be able to type and search in the search box, but you cannot.

Actual Behavior

Doesn't let you type.

Mod Pack URL (Optional)

No response

Mod Pack Version (Optional)

No response

Extra Notes (Optional)

No response

latest.log

No response

this is because of optifabric/optifine. Pasting in text does work.

Thanks for the report!
It looks like optifabric has this issue open here:

• Chocohead/OptiFabric#1312