Grey Knights Weapon Choice Bug
 

When I printed up my Grey Knights list, I noticed a bug on all the unit choices that use the Nemesis Force Sword (default weapon).

The details on the sword are listed in the GK codex, and choosing the sword grants a +1 to the Invulnerable save of any model carrying one (provided they already get one). So, for example, the terminators that use the swords should have a 4+ Invulnerable Save, while my HQ choice has the sword plus an Iron Halo which grants him a 3+ Invulnerable Save. Any Power Armor users do not get an Invulnerable Save even if they use the sword, and use only their armor save.

Sorry, what is it you're seeing/not seeing and what should you not/see?
It isn't clear what bug you're trying to report exactly, but if you're not seeing a permanent boost to the terminator save, that's because the bonus only works vs. close combat attacks.

Perhaps the modified save should appear in brackets after the normal save?

See the Bug Tracker here: http://www.ab40k.org/tracker.php?p=27&t=2815