Description:

When you try to open the quests from the widget within NEI whilst having the Crafting Calculator open the game crashes to desktop.

Reproduction steps:

1. Right click the crafting calculator to open the GUI
2. Left click the quests widget in the top left of the NEI interface

Expected outcome:

FTB quests are shown as normal

Actual outcome:

Game crashes to desktop

Affected versions:

Reproducible on 1.1.10 and 1.1.11, not attempted to reproduce on other versions.

This is an issue with the calculator / FTB quests mod, not the pack itself. Please report the issue to respective mod owners.