When I was killing constructs in Rubikon (the modron maze) on Hard difficulty, one of them dropped a "Nordom's Ocular", which is identical to Nordom's default lens.
Judging by its title and description (which both explicitly refer to Nordom), I would guess that this item is intended to be unique, and that the only one in the game should be the one Nordom has initially.
This is not strictly speaking a bug, but rather an oddity, and has no serious impact on gameplay.
I have no idea if it is specific to the fixpack, or if it was intentional - though I would guess it was not.
Just thought it might be worth mentioning.